From 7015e95ac3b8560423b0a417683ab90ea5814599 Mon Sep 17 00:00:00 2001 From: Amit Dixit Date: Thu, 27 Oct 2016 15:55:08 +0530 Subject: [PATCH] SecondCut++ SecondCut++ --- module/README.md | 8 +- module/etc/module.png | Bin 0 -> 18027 bytes module/etc/module.ucls | 69 ++++++ .../main/java/com/iluwatar/module/App.java | 28 ++- .../iluwatar/module/ConsoleLoggerModule.java | 106 +++++++++ ...interModule.java => FileLoggerModule.java} | 61 +++--- .../java/com/iluwatar/module/ModuleTest.java | 203 +++++++++++++++--- 7 files changed, 403 insertions(+), 72 deletions(-) create mode 100644 module/etc/module.png create mode 100644 module/etc/module.ucls create mode 100644 module/src/main/java/com/iluwatar/module/ConsoleLoggerModule.java rename module/src/main/java/com/iluwatar/module/{FilePrinterModule.java => FileLoggerModule.java} (57%) diff --git a/module/README.md b/module/README.md index d3d6b8746..24bd3f543 100644 --- a/module/README.md +++ b/module/README.md @@ -4,26 +4,22 @@ title: Module folder: module permalink: /patterns/module/ pumlid: JShB3OGm303HLg20nFVjnYGM1CN6ycTfVtFSsnjfzY5jPgUqkLqHwXy0mxUU8wuyqidQ8q4IjJqCO-QBWGOtVh5qyd5AKOmW4mT6Nu2-ZiAekapH_hkcSTNa-GC0 -categories: Persistence Tier +categories: Creational Pattern tags: - Java - Difficulty-Beginner --- ## Intent -A layer of mappers that moves data between objects and a database while keeping them independent of each other and the mapper itself +Module pattern is used to implement the concept of software modules, defined by modular programming, in a programming language with incomplete direct support for the concept. ![alt text](./etc/module.png "Module") ## Applicability -The module pattern is a design pattern used to implement the concept of software modules, defined by modular programming, in a programming language with incomplete direct support for the concept. - The Module pattern can be considered a creational pattern and a structural pattern. It manages the creation and organization of other elements, and groups them as the structural pattern does. An object that applies this pattern can provide the equivalent of a namespace, providing the initialization and finalization process of a static class or a class with static members with cleaner, more concise syntax and semantics. -It supports specific cases where a class or object can be considered structured, procedural data. And, vice versa, migrate structured, procedural data, and considered as object-oriented. - ## Credits * [Module](https://en.wikipedia.org/wiki/Module_pattern) diff --git a/module/etc/module.png b/module/etc/module.png new file mode 100644 index 0000000000000000000000000000000000000000..a26807d290c0d2aced42c5e5d48cf0780e9c4d2b GIT binary patch literal 18027 zcmb8Xby$>J_cx9pa1;;)r4+CbL54=86={&p0qFr@=#&;I5fG_CTDpd2=#-L{8l<~R zy5YCSIOjaq^L@YX`}^Zu7v8h)wbx#ItZ*E>m5`!onhwln_zG!osEj z{}KL$4W4k-vIk*diLpzHJX3xhyB24Oyrt%Ju2!s~lc>Gh+3i*zT>Soh=E2MZ1_u+E zh4f9tZGuOl^;XZzE+v*RybGwf-~2)%_Tnw6I);qFOJ>&5Nfp=wq4-wrmnH={WYO@i2ApfMI zNANDn*i?2{e0IMWnlv-Qony%*kuSn6Z~1W2c&t>bYx^^$F~Lz;`4_&A-yjOya`}p~i$a%Dk%u&yWr7txLn|U5&MSr~ zGm6=V$&XkEl2M28=^1^GcTpRqnYQZQxW)q3b+bOlm&s^_u42jl3-qHLW*6R>a~ZPX zO4#)^K;`{KT1qWNN~sDzK_VB^{J{2NM%X0{eEc;D5;sD^&hu?kx*~KhorK&ZoqQ$9KM)n`*9^oDlm5Vg}Yj zKMDaO6REd*$$3cev`ux_p2u^D3umsa(DHxY<31}Dal&Yz3;CJ=ELxExde~x5Ts8H* zZ{KZcMCYWLSZv}b&ob*=u>5ogKi++ExN?7GodmY0|A0Hm+rNGiuklL^ffu)G@oW!a z^k`gY%?g_oKQD~htCXD9JY~@nk;)u8ccUjze`5F&vpNB0#d)f5r(<^b#Rb_vxYuf#dyd zp`#tgnv@a`JJ`Yj2dzS0%}S=r7q9Ir*BtYpLNRuWo2RRy=p-VqEt~+= zuP^NsG6_?ci9ZqM6!UR;g{T@*d?5dLI!Ni5mgjw7@!lEfGdgPn;sR)D!EZg%8B^-E zu6dp!xQ;J$I(4*g#@>H?2AdI(8%y0Op|?2>>A@^79P z_HT94#(NC7d7QPmoXbd>Yk8~&DD&a~-th<&>J3v?f?tY1R7{|uDWQx@Jity%htPaZafrsO@bW}Xvj8`x zpNMx0&y+*Agd_bBL&eg7faziKjAhM2hxM-Yx!atF_I^RkKCMv3PX8f?PSuZ{#Hr(P ztLblq$z(Z5c{8DA?hi@=h1JH~YfJ~Xi%=KwiSZKaDdZ~Opss6SR;R7mDO29MRLA|^ z??+5j`ZM#&oK(J6*Ar%sqg(=?J!x)9}Zx z2j7%tU+fWY5Ve#O<~$_}jpMAgK6QMTsc@nxJARhP(Nc5XN83z$Iz#ThwP>3lxYHQ7 ztkO=cPh$(2>J_8o3o1ucp+rEK5Z*py+Sih{NnyC~JU3MZ%u_V`fS}g)I)1#W*CT<; zgPQW2Ba#lzmT!_`w8y$pw~pHk@+$V5Zweivcj?cU$Mg74LX2rt&Q(S%-KM(+`FD(V zvlz(Iqvx&^T!%L9>z7JU&Fbq!i_It-wy=@2beSIXhHE{w8!jZ6yi(vWjT-0(jbSPz zo3YYZQM7drqd8I^mo4mbDO9rSgHM{c&e7)8Y&6GkZR*?{Q0|F<~=2 zST{O+P^OFt{Y?Q=>#i4MO<8QM#_IwtnKJR2mkcqIY|n33EOC|ie%GX_h3^{po$bt6 zs-0KcfB)uoO1d||YG=p3$*gu|WN!PSlZlS7m z`}LViRnGQ)h=MH=Ao>G%zN&rkqlR;LhfMy3i~W73!=W)qt^0gA|2HVCFotM0xWDe3 z(t5rW2l1Qpo&Pppm(Sl*MXr&D!Q6^oQ~8@1RPKffcMigjS5^uT7QH#DUc+?2F(c3< ztRzOBplr&9{MGq1`J z{F@^Iv=Se9_mfUD7eO<1ZRy)14p@+#!FI;Nx=9Y-LeqP{`fY$0Kv zTQ#Iv(|95eEh1#?Q|9wR>3p51-e2j#ezxf>)p~Ycu`fa2=80x*Q>-(a%0ts%Qubk;GC1Y=N%`6ud9|XX`9;6`ENe9e+brwnRiVQYwcZsEFiT($pCs-vk&Qt;RJx?| z{&8qzcxFm>pDXb@{!BmA^)NWsUn&oJUUauY?}kQl!cESI-&9F~Wvt%o|>503?- zo%>Xf-1vIIk4~9u2wHHMLQm$MsdV&YfoU@Ho#UO#s`o(9I(=0X=%IKRw$p5Y-oqcA|Tdmn_HGcW}= z&@J#cA*?E7hQ1U44J=?IIKP2u-tO@M=OwW1eUb-L)e3dj87sn=#E! z(3Keex`7S8YPP(SY`!M6qA6bH0uExAk`1#nNL);PqGlb@+7Vxlgz?5_Oh9AF3f@_? z5T4n$M(4HGI$j;i%Oo26qR{h=bJV03gC+T77+=+(JBh?Qf zO+isoN618`(j)WhQ{%1bPh}Na8;iE2%oK*h7-bQcrB-XI- z_&E;dg~)Q*_DPxdm}y)!1K0|B!0rh3fmYLr-O#5_;zOlKy zJaaw=mb5h4VF5{Xp$Z<4lZC9N5C0OiL-hppbVaq~^S{&QIh1QR{>d<=Kw2+QE$kuu){xuHVI(#vW{yS7&0K;zzN~vJ< z=lcfSH{D=KT5;ml+iMXr?}n~)!P($Zca}aqdQM419~o@0Kuv& zYCiTHG6Q!J5c^GUepM;KjA6gnj_aN080=Pnk^HRVena{H{!bMp82kQ?eux7&8 z!Ym=~4aQFV^a!EA!q7%X^WUWz2t)+)8HM0DY;;LIQBlX|%hof4HYrueKM}W3+Lm%= z5Q4g1U5W=!L>evtm48=Jp^Ra^8kvbJ-k)-W=T=Ge!z1q3z;S;i8WlxYFR!V8TEt}s zUgeDbu8(RcQhk3!8PZS;1KVrGh!ftHD77Fx$rr690AjW^VeF%i)8v@o%X7!C%*|_% zt{Uwk(ooexX%LJq*&0=Cv#wJ3G+cD4m|7~W%}_%~Fpi3S-A;OjT$WkI6cQe>3jOJc zMp^8XxS!%XI3g_q$ui`$Q_~F901r_q@>O52(H7{R{?-wp5vVH6rJB*v?C5H>o*aOr zvt>IBNcpuogzAhkj9u-cLh!lrQuFBhBWH*jJo$54iZX~rCb=a!#dawp41gM#aHXm| z*v6#{FjC?eX?|9o>zWHgb51Guhnp#b6nP)c78vyK(UJ~k#Ryd;D6Cg71UA8pB5OCx zmyVVv<)XU@Fpa(yDu3^{^9?eFr71gQC3C-c=Tt;yDpev1@&WqoPrNSD&2CNIB(P-Z zNZpk7y<)3Qz(qF#ay{@9_Yn1;hKixl`TFtSN#GYZ`Cp04|N3L~5fYXbp#;G%%7S

~JbJz-I`r>hyk`Bnbg79x7Nv~1&CS~KXXPkK7gUodY=e`~b@C6Z#KBjl&AfSnbR1Z-D@Z2HVXE++@!=C4GL#m` zF*w084td*aCI6(IzxQp?Tb)yTL*->y@hhqFc=58gQ|>nS^E*6qh0*!jT17{=c%{}K z@LpCfc`#Ki6@2?eO*@56PF_K|UfcH`sxC4IX-e1TV#prM%WUpAoc2 zu>c47)4(Yxj^4KXo)EHE(|Tcu#?}~K%u#(VPupUca86B6e7HRGCW$>9A&i)LyKf4( zSYzyhkLF@G5mAIsCs_-$bXg6=C;-Az)-^5ytZ)i#{ z)za~NzV{#ERy}eG!*s@7EHgk8(<8^>sVj?%RC#)E=~nl-?1plGg~Ci_=snc&9cjya zCTF~%*X^*Ls2PI?E??{a+SbM5U~Y`K z%4!m=bE{0{RLwkF;OIj6rGnNOB^*Bsf$_((wo4mX%j0gz=IUMiV^?J8*gnOgK6RND zA$I8XAvpkLe|E(RG}_xe&W(u$?3~ME*pcvpt2@YmS8rt4c}hh?e7V^DUT!VCtDpX6tF$dpXQoe4(u5+&SIm+JByQSc*8 zO(&xDF#H3Bsnp}!0OVsVpaiCVfT=8J%S6W~umi|^;1i~n$uK1RuMXaFmJBo@K`O$c zL+F~StB$yPzwism=}LirvPcEL5Nx!IpCdv|a8SQ$DLxt`nS1~I%qt+IlK;{aLLfMm z>K`2{O+Hc6ii+OsP8bjN)w|C3_^bI}Q!c^kxyg*(%+p+`D0M7923l1j_9r#xTS}I=lFM!e7a0h6F#! zRRQANEL|rw`n)JGooj78V})f$-1p=;*7Gk?@xDs-}P=8b4* zXtH3;S(X^r{I&ah15ELHrkQjE^)k@S*&_HVXfW>T3Q})L`!oI)1D3326>r{ zwRS{xKH@iB7}P0LF6C6U4>V_S3F+@FMqK*pp&uFj#|xDDO$C1p$c@@K&jgUizuPH0 zQdpCro>#3X*qNF*x!2Gfu`Jysq-5WIaHK@cr^IdBQxWyj^iS#gLLvJw0{@8E{j}aM z!Q*vSPs6e}N=Ybfv8(yrTg`1-;`3ozO7y;Zm!&I$$8ET`SF^uUE8oH>{onIzZ!JO` zUG-*gbZYp%;SYEW1e>P22No>YXpZph{>VEH(?)Fb#imqc8CVDhRz%UE^}9tu5^YV* zLspgHe|(NB=5=A%#u*oFvk(nxP>wZz6e*(2pWvjQsYzd>y)qP+53@~h+i!8 z?uNkds{B}?8Aen9x^p!Rb)Ac(c=mV14-!wf^chdMZLI|JAJFb+6YUzDeX^@jo9GMR zn5~}n^MH80>4*y0Y92l$=$kjFe#F_Sky_)X#LeMhv|kZL{kLU;st2mh+das~U6GHG zwT2$4H?sw7@w0eKsw|A8{t3b&`Rq-#ik_7yI#v7Y%G^pIlXEAa0(GkG`z&dzryK=O z@Vn1eg>IhX+|I+OI7L8-={;N0z%@>nM}(DlHk0WG#AZCOW>ql!;1{Q|bcgrI_MS{& zfno=w)Vn|HJmTBJP0#iFEbCrm`NyvEt)P4Y0=Bgo4us)d*w zWK=)~%D5p+7=<+_p!jk-p{5$hVjM@qVGMWSP|8khyB{qHXi69=)}!Gpu$V*U%0no; zek)w5CZ>enseidiiU8rY7Ko8Hk3!735n23zQ&?3KWsB%mU4J{BFS#-H6t#IXaei zsMn#3X$wXWmh;mDft_!2ySwcxrH?Y#Y*{7@f^$~A)g8$n!Gz7CKwiW-KjGdu`BJ9{ zv)ST;<�QD01sQ8D4HlOTEw0vasSc)Ge?0K=E8P#m9PxJtPyh{Zk>ZR=T{hlcnGl zMVB3%d5M{ouiD6BU7qh8s43sHH1=gZc+E|(k!rPa@S2yqKQ$m=ISLmJBHik>n zdz<@JX*ehsur?s7)SV@d%A*OQgA9)ej*LuFol%4-CTJ0r?&b<5hXwz0(_I3jtItus508|sB>em>pF@mk}>SaZCMQ7da-=-;JZQ~n%!2L zHJ(j&%*aW0q8Vz6`I4s(f424!I1vbR>r8f&sLAMukpu12w3lMY0Ur0KO&d@g{Q#Ld<5d3vF#IC*_Jf6PbIaPr2r1KhPwqSUb7@72 zV;tspeKUjqLd+O4)&bj`(8EdmRwbA=rd3G=e4IjO#Ab_H3^KvoaVnjb*Ocf9#Tc+f4*@Rso8Dp%H-fj`$ITQe?*I{`6`5X~H)R@F zm8G&474s6iWX_&L34^Q*rd(GjrHW97HbKfsT1Ftj+{kfV%{xmTGWialIly+zMyN9{g<0F<)raH z*N8o(S|Qa3bEsmvGV1Ni%k~0`7nkKQJM$thnh=%?Fe>EI(nvtHV;+WZqs477sXz%9x~sv*^siPYXaRs% z{V-rWW7)5G{rxa@co;78u2FO|Q{ltG4efgZve20ZRxLzO&yd#f@cQ}2(NNhyAE z?~;Ss;bCl|9A)T+z9Nlj3F-K7{K5ELJ)r;j zWCZp`58W8!FZU^Z68veffr*{>$fmJaea!cGWRq|lW!v(NF_}?mv?jZpx{Cc7OyZ+* z22V`<LGdrtIk*#g zt-0$}aoFmm^((}cXK}Yf$f{V!NJnL8G^K4W_kEa!gh3ii8q(O*?&%Q?(vhI`FMys6 zr%vCHK)?a55@TndnS^!+Y=myIp_wQCeKK0z@ir^Yk;jDVcvE#MFmdWYP$;>D-vmncd(1P`fDkmYI{w*O+ z(Cw(s6DK=6+qf&1$9lRkUce<*!05r2t!{v#WQ62e{n)D;ev==H``I&;ldc0Z3Ujv{ zWl#fMcb5kuA|et_X6f5rcEt;13orDhN+-5t2n6`%>3J(rMkq&dYDybXDl;lvzJb>F zB&6F)&tIbEwUY>X8Q!vUe5#Z#%XMqBOBwXS%pg%P`AiW8WuTZxG9rmJ0DoebyQ^Q` z-9aJ8CJ}F1POnd?CTWx|FlKjmccvwnn{AfEjob&^XBg3&XY3bemKC!&^%aiq9<_?kIWlY)- z_CcvXH09z_jw((kVj77emJ&g=As8&2+k_o9#^d~}i;TP1M@l!^A|9c{t4VirTxIB_ z691m4%N)|&S}dWQZ5ARGGwwq`zPCE0B$v^B8S`mG4?;%PD$lG6v%!Ni#F9s^CPGtn z;r@5?gLFavG$&~6alVAFO+91SkXArEj7j!+bZ;z>R1?uTwgVmE#~gS3)MXW&jo@egaUhx&uZgSgDk2z7|}=d_n<=Vm?5uquG1mLS!-0>OI*5XvHr!&@GnKMkgqSW196~qV z!wk>#AW}nXn+H3q2e>lp)VP9(Dskd!uqY}hm@+9~sYfd|U}kuadLzWFRhI9vzpit> zt5f@WQ@?MpFvZN=oSOgjx0WbdwEl~d;x?$MdIQ%rcwUK|dcZ5-t|H@zjX^oWrDG&$LoG0u}BWWAj82b-9J(>DSgU z`s35H{hIx1cy9ST^~P(z&uzMrpt8h(fs9)WR#3V>V6KQiQow9*}D_M4;68UO|S1 zTd%C2V%O|-R1^{HJX zEh#PCUmH9j}BwTHPZh2oi zIS_|&5NQ)GD%-2!qTi-S;rcGeUjeAK-N~Ks#9G*1&Q#NFt+09E)yL?z=ygUa?MBL@ zXGfnph$5!SGFXEW_#ms})iEviH39!wo|dE1gGgj4>w0&SJn~YQc&m~TE9mB|^JX}M zlL}tB;LadFhFGqOuDSehc5ANv(W6JzO|RDO)2lpC@K@Gt?AtM|A{p_gD$AgKv{*%W z?^XuZX)vxlhjNq%-DUC7siJFYdD<%4ijQyNbtcpQxUlSp`6!ZzLgwZ9wR>j>!Y69n zRK|EO#XkYa-rOwKr*@&803%x%-cy-HK+c>|AbqB7h_bEspUJx2qAN9N92v!!l1o+k zO%JL7Q;abqjyh&=&Qf8Xy(@<68R9l6JDNP!nJY~uQg+5u-)R9m-5(t^lbH-2R+}N? zm3fpUqdGvZn9~a?eOo!vuhBLpqtI|tdRor%8@W2p+@oNy)MVvY{7cIq%|%v74ttcl zOQFDHQ62IKsCLzXB0YvJI6`})y9j2-9mc523RU8%-XkL5-g6VdF7G91LJpy zFHEjlLc32roc-LNE$z<_60mNx#_|VzO9ear9Hja@dGBb27!O{gD{=%4mib(n32)wi39|`rMaeWwoWNYe zQv|l{l`>Qrx}m*gshg-syn7JWd8wK7A!JzRa7PH$aeVb`E5#si~@BCa8l}$h?AVxbIgI zQ}bRAR#xV=>jVH-<61sUob|(O^2#OGSM)o7y%gI$FnyEc%aAUYFkWh@6T2i}zubRx zK+3#pHy50*v`}B53)By{@x5tauDrCOTwBSTqEiCn=KUdPI z+OwMX`YhW|Yd4ttGGbyCU;Yx%>B0JDkdEb}SlN2$a{87xjWu+!!C*QNap-gJPl{uA{4zx4!diK<_*fZ;o~S;x(oql#J9nnd5Ky zGAarMS)q4TZ(OrmK3cdqsD}1Xv+3Ndqhrp~_wYD~X@CyD30BFz;F`~b4rRI8TZRHD zaMtU=;2=wmp5g!({)Fp>4dZ3XK(&W?y(AKoUe_zkAd()GFHXEq4UGCjqi(S86>hRw z6W?5;B=kGoaRSGHIQH?qmcAQqF>G3U7Rk61c3B)E>t~0HNj~tkY6d2#i?CW93f-&@ zT6`!q)c)q8poAU|l5UJA4M{gAv_yU69~zaM!6LUOV%h#TI!$%gi@o-rOHeU`l*<+8 z7i=PgmQMYb1`V*_COG$hJi8iKj4;urd%%&JtSNo;?G-pR0~KReSr?wg#bQ6D>M%5`lLq^9yQHw zYTa62M&bWo*wZe9_XDxwQaRzQ^P1}THa^_s7RkZw09Yx)u!3P(Cp-4Pv1LiFn3PaU zF*E9*G<=f;nQEN{8N-{5Vb%ZRs!_BlmrfDF;-gKD8=KElBV)(_9{cF^t zAlioKB#IgN7B`;~F$JJr-#how?p1T8=_0RBm5$sw`U`6fA09oVPLNHYTx8W`~2sy{tE>CX zFTyv7c|`pC5qfY?E{+$oIhaQr4Rxs?9-sRGAx1z5u<|0SIza~xPGl3jg7_*_)^zI z4IbYIdvJkJ>()@I<;32e12ESlH4>Ncjb{MC{U3TxbNK9tyyggFkbi0FP?}d89a_~hKn-)Qa#C5H& z^8pG#z&OJwd}gpL5GHl^+WD<`Y-Yc1&a}jU$T6ye*0HqnSYga_1&!^l(dF6xD;HsY zZ3e&cNk6e#+CMh#jyDIUrNV(<*kBr|n*&XV<%ton+nkrs*!KC#IOHS;ASU|jw+OWW zr3fq_%Lt;QECWP=!T=%xq3)MXEK6xMseq{Y}s+~u^epOf;c6L3D=#{&zz0OHdM z)*U~w_AEI==vkiv*5pOt;TgH+{DOW|%0K9_u408;&eeqk5x_4nT+N)kjP5PVC;N!~ ze|pGi2##K#jZewmNFU}I4z@ro6PNbK_k8B2;IgDpC$J;FdqXS49FmOEwloiqwVehx zJKoU0Q?_afMwwl4jye-4qAx+Tp1rBN(|I z?@Le6-nC2tCEH%XyS2aqb3PKdYFQ{m+|+m={_OrDn#ARKaY&$%4a=NyMYt1%ui%tk zN$G~!2Zs(9qeFV&;C5gwQug4ei`rSZ&teqGKrsHzw#T8l{I)V@_nqKu@lIO}cK7YN z%IMcL_dLnb*wXl5$^E>hlJk|J3evGI3BzKqW!P^T@jh6%tMo$g2=4W&U*A=2k^88U z-Gu^$b^Te&+ef?e(CPo_S`llIrHdLTYum=1L2O+wp!;&obEdY~^aq*Y0*en4OJ-zT zdf3WIjVuJasvmVNw@4nJ#2a~|-dqQkN==Lj2KT|XZY$OUQev$Kxs3~KS`VcHN-F+8 zJTys1#h&l&@d@sGa=V$H5(_#1NNcfB8ZnidQS(97g+2#*Ly8gj31{Ip;SC8M=K{tb zycI_Vg}!AGcavI@lV(AX6v7yrqJ+IU5-n2vv>t5ur-!3WS70lzHRJSBBD+p;R!4Zg+aLE%hu*QM+EnCJQT_I zyb{i=PHjCXm)*__H{;XS6`e;&OS288XS{}3xwJ1eGxx-PDhaiIk`~3pXEZu=P)iQK zpn>t4Y~~cjK9JZ6vNC#yN5d$++(Rxol&v_kX@@BhPMn$+%&fk!8581%wOn zFGFtSrmqj3f2|+!b*#49C0`znKVIiPJKE`yb9ZBZcX&8JKF(IPGT*tof3{NaV^X2; zfx8UG5r9D$gSfk<~z>P5;8v$y+MdttMB8#MJ zQ&#_Iq`k59ALsW$vtKc49^X26nN7>LlTPbVd9;z!K#2xD5-fgW5L5ED$=sf;!#Z1zSN0B2S|q`W9C$ zbbv-lNVa08zF1x=e^$-G=Z0H9$^O{0Zb4|k;PGWyt|6Yl!Q@+JvO*7kya}n%sfOj3 zCO~o04%mCiX$OSIM-pNmyMg;6eFls#$4Gu*ZJRzi$=S5}e87Fx$Ksk@eb_*C+Nq7{ z080Ss{`nZ6yyXxNFNMYW>SFTygM*yWvno$YmV36S9$ist)mMl9VIQRE z?w2snw^J=Wx0%i;c4{}zmed=Yp#79+v9OuoEL!mfl)t8kSD<#*3d?xHQTQm#FxTPw z`KJQrwH7Pf4u*&vYyV&P)3ludbAU%(p?X^&>M{K=YhuH1%=vX_M@G^sk4)5)4^TxR zsy;wmmnXG$U9$YVyyr27?4S%MM(2a69Iy!5F_Wped#NQTj zgW2KtG^x0b?;w@`TdMiLB&9ZRuF>V&!)3W|cGt06tIk zrdpXW;4Zu;eKgzI&p&B`P?vO>4 z(Gu-lah&IAc=hdOpwu3?GwcMWZ?b^U@*jWCqjs6eKGSAHhPKhEMLKJ?;7rhhVlb_ zfStE7Fe3V&N1OOLMFX>3r~98ENQ<#f2rU*;{zo{CwOZ@qM0z$ zj{ono85fxF0L-fQ9^}#1?5B0t9M2BYI{gq@R|DtlJ1+eDoW{L@o|uk%3C)Am_XVGD z)kyN+b0O(HzzV=Pc9|cP;CoSgV*!7OWuM_uB>815o)Hf`H}_0j+`0 zLevk-y#D-_fD+-HU~zoUxUa{ku$NDE6~lnRc>zwyZ|LBG7a(JW#@$-xbwk20He8Y1xWY6DudHvpe2>SsZ->@DoH<<1ZvrjE47Q%ZQ<;PXnq3E`{1_DF&~T zL*#g3ihaVu=)z9_9vE7Ruw!T~04IPv4Af0czUrddTv55JTOq^p_r8Z|#(ET|(ONRx zHCfC=?JqYy3=`ez6JRVp!VIDbGsc4$H%OtE8-155soO=2ULCBU4w`h9XzdiX|-rP)4S| zRr(6m0{#IP$;y3v)Z-xIJe`pbP0e|iGB4RjtAt;s-d;tjKSi0v@aKi5LSJ>Kh*p^o z0$JERvIBR(>8YDpD!$vgq9(36k-@f*C`z6dw)gI5tSuHLWO=EKfBQ8|OEf}~xHmvT z)n(X@xuv1AMeNVsYD!DPqT{2_l?B`~^jr;lE&pD~-JDd-|4uvs>g|OpQAlss%r+V{ zwlF3vXp#|Wzw-;7F+@445sKA;35#(kxcP;`q5%9DfV>DrPU;~|Ime$+ZSkg1c>vh9 z>@UY-yP+CYEMWgVCo}}OJ_T@nhECM$T=pT<-w#?f16(3nTR-YkIGf6C(Qmo*4K5I1h)5E~KOQYkTj z5qcPmaDr<%|5srYA&T^23_JXL{v|e36X+RA zc=uZiBbEdXON-4m9o%JoPYdL zqy21dfzu%9sHg4fh|W_NR~yFmZd0RyeJBSjbQ0UasKuq{Q|`Qd=6jXCF0%J zn>#}}-=V!O`JiJmi^-Lb;ZBDe=c|c+%z1e_+O;nw%@bS>Y1ZEK-&fbNdEMbn0X7v= zp#S?6{bqJ1Nsx()mCVeFcJCKA>;(0W1g1WAMY^sU zL0aozQGQJ71b<=54|V0*|Nq6WhK7?hF_q})rRWdXSoHa1SXdbpNL(x|Mm+chtT*ou b&*xx@wCm+^Q{eyCf+Z;`E0Qa$`}Y3>Bi8;O literal 0 HcmV?d00001 diff --git a/module/etc/module.ucls b/module/etc/module.ucls new file mode 100644 index 000000000..d2519b856 --- /dev/null +++ b/module/etc/module.ucls @@ -0,0 +1,69 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/module/src/main/java/com/iluwatar/module/App.java b/module/src/main/java/com/iluwatar/module/App.java index 9dab6a00c..0ca43d5c2 100644 --- a/module/src/main/java/com/iluwatar/module/App.java +++ b/module/src/main/java/com/iluwatar/module/App.java @@ -35,23 +35,35 @@ import java.io.FileNotFoundException; */ public final class App { - private static final String OUTPUT_FILE = "output.txt"; - private static final String ERROR_FILE = "error.txt"; - - public static FilePrinterModule filePrinterModule = null; + public static FileLoggerModule fileLoggerModule = null; + public static ConsoleLoggerModule consoleLoggerModule = null; public static void prepare() throws FileNotFoundException { - filePrinterModule = FilePrinterModule.getSingleton(); + + fileLoggerModule = FileLoggerModule.getSingleton(); + consoleLoggerModule = ConsoleLoggerModule.getSingleton(); - filePrinterModule.prepare(OUTPUT_FILE, ERROR_FILE); + /* Prepare modules */ + fileLoggerModule.prepare(); + consoleLoggerModule.prepare(); } public static void unprepare() { - filePrinterModule.unprepare(); + + /* Close all resources */ + fileLoggerModule.unprepare(); + consoleLoggerModule.unprepare(); } public static final void execute(final String... args) { - filePrinterModule.printString("Hello World"); + + /* Send logs on file system */ + fileLoggerModule.printString("Message"); + fileLoggerModule.printErrorString("Error"); + + /* Send logs on console */ + consoleLoggerModule.printString("Message"); + consoleLoggerModule.printErrorString("Error"); } /** diff --git a/module/src/main/java/com/iluwatar/module/ConsoleLoggerModule.java b/module/src/main/java/com/iluwatar/module/ConsoleLoggerModule.java new file mode 100644 index 000000000..097f85b0e --- /dev/null +++ b/module/src/main/java/com/iluwatar/module/ConsoleLoggerModule.java @@ -0,0 +1,106 @@ +/** + * The MIT License Copyright (c) 2016 Amit Dixit + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and + * associated documentation files (the "Software"), to deal in the Software without restriction, + * including without limitation the rights to use, copy, modify, merge, publish, distribute, + * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all copies or + * substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT + * NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +package com.iluwatar.module; + +import java.io.FileNotFoundException; +import java.io.PrintStream; + +import org.apache.log4j.Logger; + +/** + * The Module pattern can be considered a Creational pattern and a Structural + * pattern. It manages the creation and organization of other elements, and + * groups them as the structural pattern does. An object that applies this + * pattern can provide the equivalent of a namespace, providing the + * initialization and finalization process of a static class or a class with + * static members with cleaner, more concise syntax and semantics. + *

+ * The below example demonstrates a Console logger module, which can print + * simple and error messages in two designated formats + */ +public class ConsoleLoggerModule { + + private static final Logger logger = Logger + .getLogger(ConsoleLoggerModule.class); + + private static ConsoleLoggerModule singleton = null; + + public PrintStream output = null; + public PrintStream error = null; + + private ConsoleLoggerModule() { + } + + public static final ConsoleLoggerModule getSingleton() { + + if (ConsoleLoggerModule.singleton == null) { + ConsoleLoggerModule.singleton = new ConsoleLoggerModule(); + } + + return ConsoleLoggerModule.singleton; + } + + /** + * + * @throws FileNotFoundException + */ + public final void prepare() { + + logger.debug("ConsoleLoggerModule::prepare();"); + + this.output = new PrintStream(System.out); + this.error = new PrintStream(System.err); + } + + /** + * + */ + public final void unprepare() { + + if (this.output != null) { + + this.output.flush(); + this.output.close(); + } + + if (this.error != null) { + + this.error.flush(); + this.error.close(); + } + + logger.debug("ConsoleLoggerModule::unprepare();"); + } + + /** + * + * @param value + */ + public final void printString(final String value) { + this.output.println(value); + } + + /** + * + * @param value + */ + public final void printErrorString(final String value) { + this.error.println(value); + } +} diff --git a/module/src/main/java/com/iluwatar/module/FilePrinterModule.java b/module/src/main/java/com/iluwatar/module/FileLoggerModule.java similarity index 57% rename from module/src/main/java/com/iluwatar/module/FilePrinterModule.java rename to module/src/main/java/com/iluwatar/module/FileLoggerModule.java index 879492248..d1df062de 100644 --- a/module/src/main/java/com/iluwatar/module/FilePrinterModule.java +++ b/module/src/main/java/com/iluwatar/module/FileLoggerModule.java @@ -1,11 +1,3 @@ -package com.iluwatar.module; - -import java.io.FileNotFoundException; -import java.io.FileOutputStream; -import java.io.PrintStream; - -import org.apache.log4j.Logger; - /** * The MIT License Copyright (c) 2016 Amit Dixit * @@ -27,39 +19,60 @@ import org.apache.log4j.Logger; * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ -public final class FilePrinterModule { +package com.iluwatar.module; + +import java.io.FileNotFoundException; +import java.io.FileOutputStream; +import java.io.PrintStream; + +import org.apache.log4j.Logger; + +/** + * The Module pattern can be considered a Creational pattern and a Structural + * pattern. It manages the creation and organization of other elements, and + * groups them as the structural pattern does. An object that applies this + * pattern can provide the equivalent of a namespace, providing the + * initialization and finalization process of a static class or a class with + * static members with cleaner, more concise syntax and semantics. + *

+ * The below example demonstrates a File logger module, which can print simple + * and error messages in two designated files + */ +public final class FileLoggerModule { private static final Logger logger = Logger - .getLogger(FilePrinterModule.class); + .getLogger(FileLoggerModule.class); - private static FilePrinterModule singleton = null; + private static FileLoggerModule singleton = null; + + private static final String OUTPUT_FILE = "output.txt"; + private static final String ERROR_FILE = "error.txt"; public PrintStream output = null; public PrintStream error = null; - private FilePrinterModule() { + private FileLoggerModule() { } - public static final FilePrinterModule getSingleton() { + public static final FileLoggerModule getSingleton() { - if (FilePrinterModule.singleton == null) { - FilePrinterModule.singleton = new FilePrinterModule(); + if (FileLoggerModule.singleton == null) { + FileLoggerModule.singleton = new FileLoggerModule(); } - return FilePrinterModule.singleton; + return FileLoggerModule.singleton; } /** * * @throws FileNotFoundException */ - public final void prepare(final String outputFile, final String errorFile) - throws FileNotFoundException { + public final void prepare() throws FileNotFoundException { - logger.debug("MainModule::prepare();"); + logger.debug("FileLoggerModule::prepare();"); - this.output = new PrintStream(new FileOutputStream(outputFile)); - this.error = new PrintStream(new FileOutputStream(errorFile)); + this.output = new PrintStream(new FileOutputStream(OUTPUT_FILE)); + this.error = new PrintStream(new FileOutputStream(ERROR_FILE)); } /** @@ -79,7 +92,7 @@ public final class FilePrinterModule { this.error.close(); } - logger.debug("MainModule::unprepare();"); + logger.debug("FileLoggerModule::unprepare();"); } /** @@ -87,7 +100,7 @@ public final class FilePrinterModule { * @param value */ public final void printString(final String value) { - this.output.print(value); + this.output.println(value); } /** @@ -95,6 +108,6 @@ public final class FilePrinterModule { * @param value */ public final void printErrorString(final String value) { - this.error.print(value); + this.error.println(value); } } diff --git a/module/src/test/java/com/iluwatar/module/ModuleTest.java b/module/src/test/java/com/iluwatar/module/ModuleTest.java index 797e7f26a..cf3435850 100644 --- a/module/src/test/java/com/iluwatar/module/ModuleTest.java +++ b/module/src/test/java/com/iluwatar/module/ModuleTest.java @@ -24,19 +24,21 @@ import java.io.BufferedReader; import java.io.FileNotFoundException; import java.io.FileReader; import java.io.IOException; +import java.io.InputStreamReader; import org.apache.log4j.Logger; import org.junit.Test; /** - * The Data Mapper (DM) is a layer of software that separates the in-memory - * objects from the database. Its responsibility is to transfer data between the - * two and also to isolate them from each other. With Data Mapper the in-memory - * objects needn't know even that there's a database present; they need no SQL - * interface code, and certainly no knowledge of the database schema. (The - * database schema is always ignorant of the objects that use it.) Since it's a - * form of Mapper , Data Mapper itself is even unknown to the domain layer. + * The Module pattern can be considered a Creational pattern and a Structural + * pattern. It manages the creation and organization of other elements, and + * groups them as the structural pattern does. An object that applies this + * pattern can provide the equivalent of a namespace, providing the + * initialization and finalization process of a static class or a class with + * static members with cleaner, more concise syntax and semantics. *

+ * The below example demonstrates a JUnit test for testing two different + * modules: File Logger and Console Logger */ public class ModuleTest { @@ -54,23 +56,23 @@ public class ModuleTest { * @throws IOException */ @Test - public void testPositiveMessage() throws IOException { + public void positiveTestConsoleMessage() throws IOException { /* Prepare the essential sub modules, to perform the sequence of jobs */ - final FilePrinterModule filePrinterModule = FilePrinterModule + final FileLoggerModule fileLoggerModule = FileLoggerModule .getSingleton(); /* Prepare the essential sub modules, to perform the sequence of jobs */ - filePrinterModule.prepare(OUTPUT_FILE, ERROR_FILE); + fileLoggerModule.prepare(); /* Print 'Message' in file */ - filePrinterModule.printString(MESSAGE); + fileLoggerModule.printString(MESSAGE); - /* Test if 'Message' is printed in file */ - assertEquals(readFirstLine(OUTPUT_FILE), MESSAGE); + /* Test if 'Message' is printed on console */ + assertEquals(readFirstLine(), MESSAGE); /* Unprepare to cleanup the modules */ - filePrinterModule.unprepare(); + fileLoggerModule.unprepare(); } /** @@ -79,20 +81,20 @@ public class ModuleTest { * @throws IOException */ @Test - public void testNegativeMessage() throws IOException { + public void negativeTestConsoleMessage() throws IOException { /* Prepare the essential sub modules, to perform the sequence of jobs */ - final FilePrinterModule filePrinterModule = FilePrinterModule + final ConsoleLoggerModule consoleLoggerModule = ConsoleLoggerModule .getSingleton(); /* Prepare the essential sub modules, to perform the sequence of jobs */ - filePrinterModule.prepare(OUTPUT_FILE, ERROR_FILE); + consoleLoggerModule.prepare(); - /* Test if nothing is printed in file */ - assertEquals(readFirstLine(OUTPUT_FILE), null); + /* Test if nothing is printed on console */ + assertEquals(readFirstLine(), null); /* Unprepare to cleanup the modules */ - filePrinterModule.unprepare(); + consoleLoggerModule.unprepare(); } /** @@ -101,23 +103,23 @@ public class ModuleTest { * @throws FileNotFoundException */ @Test - public void testPositiveErrorMessage() throws FileNotFoundException { + public void positiveTestConsoleErrorMessage() { /* Prepare the essential sub modules, to perform the sequence of jobs */ - final FilePrinterModule filePrinterModule = FilePrinterModule + final ConsoleLoggerModule consoleLoggerModule = ConsoleLoggerModule .getSingleton(); /* Prepare the essential sub modules, to perform the sequence of jobs */ - filePrinterModule.prepare(OUTPUT_FILE, ERROR_FILE); + consoleLoggerModule.prepare(); /* Print 'Error' in file */ - filePrinterModule.printErrorString(ERROR); + consoleLoggerModule.printErrorString(ERROR); - /* Test if 'Message' is printed in file */ - assertEquals(readFirstLine(ERROR_FILE), ERROR); + /* Test if 'Message' is printed on console */ + assertEquals(readFirstLine(), ERROR); /* Unprepare to cleanup the modules */ - filePrinterModule.unprepare(); + consoleLoggerModule.unprepare(); } /** @@ -126,20 +128,152 @@ public class ModuleTest { * @throws FileNotFoundException */ @Test - public void testNegativeErrorMessage() throws FileNotFoundException { + public void negativeTestConsoleErrorMessage() { /* Prepare the essential sub modules, to perform the sequence of jobs */ - final FilePrinterModule filePrinterModule = FilePrinterModule + final ConsoleLoggerModule consoleLoggerModule = ConsoleLoggerModule .getSingleton(); /* Prepare the essential sub modules, to perform the sequence of jobs */ - filePrinterModule.prepare(OUTPUT_FILE, ERROR_FILE); + consoleLoggerModule.prepare(); + + /* Test if nothing is printed on console */ + assertEquals(readFirstLine(), null); + + /* Unprepare to cleanup the modules */ + consoleLoggerModule.unprepare(); + } + + /** + * This test verify that 'MESSAGE' is perfectly printed in output file + * + * @throws IOException + */ + @Test + public void positiveTestFileMessage() throws IOException { + + /* Prepare the essential sub modules, to perform the sequence of jobs */ + final FileLoggerModule fileLoggerModule = FileLoggerModule + .getSingleton(); + + /* Prepare the essential sub modules, to perform the sequence of jobs */ + fileLoggerModule.prepare(); + + /* Print 'Message' in file */ + fileLoggerModule.printString(MESSAGE); + + /* Test if 'Message' is printed in file */ + assertEquals(readFirstLine(OUTPUT_FILE), MESSAGE); + + /* Unprepare to cleanup the modules */ + fileLoggerModule.unprepare(); + } + + /** + * This test verify that nothing is printed in output file + * + * @throws IOException + */ + @Test + public void negativeTestFileMessage() throws IOException { + + /* Prepare the essential sub modules, to perform the sequence of jobs */ + final FileLoggerModule fileLoggerModule = FileLoggerModule + .getSingleton(); + + /* Prepare the essential sub modules, to perform the sequence of jobs */ + fileLoggerModule.prepare(); + + /* Test if nothing is printed in file */ + assertEquals(readFirstLine(OUTPUT_FILE), null); + + /* Unprepare to cleanup the modules */ + fileLoggerModule.unprepare(); + } + + /** + * This test verify that 'ERROR' is perfectly printed in error file + * + * @throws FileNotFoundException + */ + @Test + public void positiveTestFileErrorMessage() throws FileNotFoundException { + + /* Prepare the essential sub modules, to perform the sequence of jobs */ + final FileLoggerModule fileLoggerModule = FileLoggerModule + .getSingleton(); + + /* Prepare the essential sub modules, to perform the sequence of jobs */ + fileLoggerModule.prepare(); + + /* Print 'Error' in file */ + fileLoggerModule.printErrorString(ERROR); + + /* Test if 'Message' is printed in file */ + assertEquals(readFirstLine(ERROR_FILE), ERROR); + + /* Unprepare to cleanup the modules */ + fileLoggerModule.unprepare(); + } + + /** + * This test verify that nothing is printed in error file + * + * @throws FileNotFoundException + */ + @Test + public void negativeTestFileErrorMessage() throws FileNotFoundException { + + /* Prepare the essential sub modules, to perform the sequence of jobs */ + final FileLoggerModule fileLoggerModule = FileLoggerModule + .getSingleton(); + + /* Prepare the essential sub modules, to perform the sequence of jobs */ + fileLoggerModule.prepare(); /* Test if nothing is printed in file */ assertEquals(readFirstLine(ERROR_FILE), null); /* Unprepare to cleanup the modules */ - filePrinterModule.unprepare(); + fileLoggerModule.unprepare(); + } + + /** + * Utility method to read first line of a file + * + * @param file + * @return + */ + private static final String readFirstLine() { + + String firstLine = null; + BufferedReader bufferedReader = null; + try { + + /* Create a buffered reader */ + bufferedReader = new BufferedReader( + new InputStreamReader(System.in)); + + /* Read the line */ + firstLine = bufferedReader.readLine(); + + logger.info("ModuleTest::readFirstLineFromConsole() : firstLine : " + + firstLine); + + } catch (final IOException e) { + logger.error("ModuleTest::readFirstLineFromConsole()", e); + } finally { + + if (bufferedReader != null) { + try { + bufferedReader.close(); + } catch (final IOException e) { + logger.error("ModuleTest::readFirstLineFromConsole()", e); + } + } + } + + return firstLine; } /** @@ -160,17 +294,18 @@ public class ModuleTest { /* Read the line */ firstLine = bufferedReader.readLine(); - logger.info("ModuleTest::readFile() : firstLine : " + firstLine); + logger.info("ModuleTest::readFirstLine() : firstLine : " + + firstLine); } catch (final IOException e) { - logger.error("ModuleTest::readFile()", e); + logger.error("ModuleTest::readFirstLine()", e); } finally { if (bufferedReader != null) { try { bufferedReader.close(); } catch (final IOException e) { - logger.error("ModuleTest::readFile()", e); + logger.error("ModuleTest::readFirstLine()", e); } } }