From 1aed5905d78689f36a9cc0b9071bb58f3759cffc Mon Sep 17 00:00:00 2001 From: Katarzyna Rzepecka Date: Fri, 6 Jan 2017 01:20:59 +0100 Subject: [PATCH] #66 Balking Pattern --- balking/README.md | 23 ++++++ balking/etc/balking.png | Bin 0 -> 21427 bytes balking/etc/balking.ucls | 46 +++++++++++ balking/etc/balking.urm.puml | 24 ++++++ balking/pom.xml | 46 +++++++++++ .../main/java/com/iluwatar/balking/App.java | 53 +++++++++++++ .../com/iluwatar/balking/WashingMachine.java | 73 ++++++++++++++++++ .../iluwatar/balking/WashingMachineState.java | 25 ++++++ .../java/com/iluwatar/balking/AppTest.java | 32 ++++++++ .../iluwatar/balking/WashingMachineTest.java | 62 +++++++++++++++ 10 files changed, 384 insertions(+) create mode 100644 balking/README.md create mode 100644 balking/etc/balking.png create mode 100644 balking/etc/balking.ucls create mode 100644 balking/etc/balking.urm.puml create mode 100644 balking/pom.xml create mode 100644 balking/src/main/java/com/iluwatar/balking/App.java create mode 100644 balking/src/main/java/com/iluwatar/balking/WashingMachine.java create mode 100644 balking/src/main/java/com/iluwatar/balking/WashingMachineState.java create mode 100644 balking/src/test/java/com/iluwatar/balking/AppTest.java create mode 100644 balking/src/test/java/com/iluwatar/balking/WashingMachineTest.java diff --git a/balking/README.md b/balking/README.md new file mode 100644 index 000000000..e5f8a6711 --- /dev/null +++ b/balking/README.md @@ -0,0 +1,23 @@ +--- +layout: pattern +title: Balking +folder: balking +permalink: /patterns/balking/ +categories: Concurrency +tags: + - Java + - Difficulty-Beginner +--- + +## Intent +Balking Pattern is used to prevent an object from executing certain code if it is an +incomplete or inappropriate state + +![alt text](./etc/balking.png "Balking") + +## Applicability +Use the Balking pattern when + +*you want to invoke an action on an object only when it is in a particular state +*objects are generally only in a state that is prone to balking temporarily +but for an unknown amount of time \ No newline at end of file diff --git a/balking/etc/balking.png b/balking/etc/balking.png new file mode 100644 index 0000000000000000000000000000000000000000..f409eaacbb951b01f4bbeb5b6b6f51bed1a86179 GIT binary patch literal 21427 zcmcG#RY084k}eu)po2CL+!_r8cL~-IBxrD#;O?%Wakt>^?(RW?1oz;<-Q8~|d+)h> zX70>6FZY25daZwXeO2{URq$sSF%(36#1}7KpnMYlDF5Qc%Tm}M8}JqEm*wO)XL0F1mBP%ub5dm6D*JF@~DT}KN9tQF0K`af2GVJiO4x1&wwpV===6<$+9UiT|7qXXsC08KJ$yAJw^sexx^p<)rc~cHHq+q2+{BIdr(kDa^1{KaWJF9*?m~o(AtSiu5vX{1m?ni=ijsUvAk_0I)<95=-YuNNJ z0UtOW)ZaMC3Pow!-zYw~;7G=PmkzElSyaG1cr0S3^{g+-3om*tvtX+IAP`>AFjquZ z{yisU-2U2~+J7UiekI^%Jdsy%fZPem#!UV5vCaHsl9;g)anu+;Q?m^exVC2bS-*WSoA(^ zqbw?@FHU5bFk-}BQDr|{6eXpUPGuLLJRh)3YE*ZiYt?mW4OTR!+o$}DUp{|7Enzz& zgCX`s^>LT4uQTI-V^+=XYnX+CHyx|#YzNybF~ogfoOOluJfWVc)i#FxMZXx&>^CbV z*nNQfWN1|j;y~9xz#G`;O0{X}p2sX@-ESElgXJ>f@YrVt7v==M;}x(OSdpe*Su~YE zKt56~?Xwcra_@r|ILaPPGp1!H8#o=tGWhKd#M|2(Qsaxw#ZQh(UytsM({n4RYk5DN zVY@3W?S8cDqk$^_`=nzIiRu^5BiV52ZjGl3u}C!?W84bBx@qHL^Wgqoorn)8XA7SP z!Mu|7is=~FF(D)5R}o4d?-5zDPNr0qqtiBu@jUCGosKD6QUh^5$vi$-x$$}+frlh< zmtfsyb_Z@`y(^3J3`u8tvJKN zb0be5ik5fxKC}p3{aG9`uWyVqo%yUqgQoX7OtEZ<=pn(fv2spv$jZK++azsKW+oTjXYq7#n|f&Dv{tjmPh{I2+N3jKYT$|qit=1gbzBgrH_+VK2x zJ=!69RuK*Mb|_6jJvNN5yir2Y0nz+s^&@-?#+OY51%o7U7*Cz#-mF0gGn=K8L3SGx zzBG8uZWC>8p9spih0q=OoQksj>4Kr)j<%qfdLa#UQTJZ!o!OLNc7(F~izCYI+6$UH zg~gx6)P{I?({UXtXGt`dPK`ySVROB)QzICzDRzzl@lqAq^1@r%W+5+yn|VzE6McqL zdgZ4YiNth~eyW<_pdsa`=VjW_Qfk-FQ%Cp=?cOw39>`}ItxI76cJ!*UUXAA_l&;;} zvozTi5>K@1{V{|w3M5w(- zIHIEKf;B-_=L*mKkD{(a-QHk3>9=2Cw;uDlv;2Z=ZU6O*XD)mo_HVo?OoCwpG1Xn# z!II1zfr+EaEO|s?W^0ol9f!6JgySkQ<;UXY8Qsomr_~JD70xWg`C!_TOp}Aws@$*3 z$V8!7C2MVBs0WiO)AWST(Z7VqCNgR+4Gpw7EmaSTFSIh+&4|z6^P}Tk#H@JP&JfY9 zST}Y)izu z%xlKuq^rL5GT>kP?pYIUsqUPWTQL;}10 zzO%~M{*lDg?79zooEPuyT)!3%IqP#CkYPAmUdcb8<6M34ha)QL{F%?n!MO6ffMP*o zhIy5)36Ce-L{xsI=vS`+C817c-k8RS=_t2BSyJkhGuLz2xviXj;KeSzW$hI;Ce)4} ziK_7De$TT=CSOGDehx17mzBUb5X6SFF=9pnR>3{@K)fWlQ#q%{yuilPQc^_u^!sSk z$J_unG3};${Uni$cGOT}`3@`n;7Hg}_4EEP2wy12xbWtBI#tS2dhKl|7Xv+60ImoUutAvf0RZ|Tx-_fbY#+kNs7 zx>w(xF#YG_y3Fp)eWv+zd99(Nz+y=8DorDB7JmTs&GIePpyAgGS#(MlQT>6Ih6MiD zAmqKGGG!JPw@&ZR#r=7)V&a3Qvgs-DDOVe;K91DN6$IGvpGOO``7}+)-?5XCHDzJ( z?94|aU1c*PJZl|%EthtSu^^pw7u0p4sditFqxm^8(Yqf}1>Q-hr!go@eJnrNzAwE) zCGzGOPJ)A2ZIbdzvI$499@4p`2E0Q!x5GSceTVotUF;2&o&3t^mtNmOnW}FItV@r6 z;4^rvh(9OwY}_*3PCH^DYUh1*nm4H|&^L?;B588ly0}a&LcnQ0PX5V(QTjlyE)wv# zIlv;#x|SdOV!z;E!!uMd&p^7%YH=gRMY8dE=LK|aHZ&wcRxt_>%f=uyx^>M@NZxh% z0Afc)dXEzsh4gKhGDLMBbRmn%Do5Kyo1r@Xj#4U0{p%#9bt=^YI-qW9hH~ zq%usy6)5YJl1(nLWs84wB>pLc-u1nptCPUT2=dGB3;iTClBbZn@j3kV3?$EeY#g9= z8)PcTE;W_KeKV;Mfjv?~LjG}OpXf)h!nHq{xkfr_Y{ke}e6*uD*TUPEiB47xIi<+< zqC*x>%XY%_Dn?Is6!O+zzm?7ftcNdR_&Q#Nmfgao^RSO{z>wWS_^qV$a~;W z2)vcEza>R{?d|#$DbGSK#EKS|>ym^VpYUWm2?aw{!^-Rx9$E@eyO_DYLnSv~zv{RE+8Lxm+ABwNwmu&h|7@0kv0^)5#`$MIs(^ z;pb&OM3Zz(*nYi08|l-=grk;yT=M5YlqdJV)-IKjKw)LKM`=3~xj=bO7>Wcy@6!@z zQs3OVk`%P*eOA``g{xEf`Zkmf;Q;A}<%!4)hqaomqkl+P*j952y$(KjF=R5va3n}= z*!r&HdAQ-RN+;tb4<^pzRa1z0Ht;``C9_tGDUGE(5cSSY{ z%BJD_Q9pBpFLL}ywt9*22ZSK&e976*kZZmtiI(b9Z8H}0tMBO@3G z3f?Fa!#{md{*D`dykWQzurv2Vdnh`!0y6|1pvL#hr7mS<8T9;^^>i;3-2pRlCfbjk zER@ev?C+Bco5VY)5J7K~TUJ8-^z_yX7WdG0JULlxlLKl?mqsi`oKwE~>z+cvzT7!U zsXQyL`%}ydzEK^MXikSJ8G83xu3s~mmWH({0FzHzd!=CZe%q_tkRF5QFB5iqCC@uu zvss;dCRM(=oG74;sfLB*M5o&ov4_+tg#N*PuL>(3#`TYBJE0U=z4(A1GcO=as=O%w zW~BWOHeDrK!mX0|OiS+s_GXXXsvRGy)2R~r{0_cguK zp)aT@@FtrgtaL_BWbrh85U7n0JFtz-A3?IkTmPMYm0A6GW$_q%=O*U2-BZIzs}^iM zNoY|J*jtKx;_S$G@>S5Y)hfOw?-@D65JI&sZ`U$)`vR(`w^K`I{mRzf87$t|*6CnI zHSy-eJ3~W5PQlf^Z6KGt|Cw?v5R>6*KVrs!OFdIyfNl^~UgR}qv;uZ`5`^M>JcGsV zyo<<*m+oD!n=DGQ&BkF|tIf8bH!$4Wnol!b)>!d(!j3=A?@z{Usfjv|<|*1wq}>qf z)2ChzqFEW|Q+|w`J%#ubM+;G{g+q;y)!0h&Ns4PlHf2MFxn*N6e6fP)q`b4`1bfRm zQoD9!QMG|rhSyWPUw?C&{9Sq#Z0SLx86^$5>;Y)!QTZ(1h_*@Iy1g(x z$08L|KY~hFlAC|Ulj6;jUtevQ@Q3cLc;ckW6Ay`@jgypb#l3+k`rRH|&%B1o!~MSr z>z}5mh<0U1tb(`aynOr&Hkhm!?*yVW(fv|VPVx?~hJREN!#v4R|X1JVd5>TwqMRTP7k{ zZ(RMgP<~OMa(~cvMM|LZgkEx(BKOggn4Nu0e=EDESuE68+WA_iJ#y%~PQ+MJino7f zV=6&5&;F})hmk?_@ZcGSwg+K_ceuxI%YsMsF5PblBE{duPZro5)T23lel@jR19Eybq*L{diJI?-@g8vxx0&dF zEjioSbeeYsqTXR{_7V;jonBg6AITH<0GcDzKP_RE6!Fzw@-y0eTbrp2Y< zx$~3t5T`zxg;A%-q?kCaWwUh>!^OKvxCtG(rxB+b9Qa-Ue#C2_R|;lOOrmN6|PRwrl%`WohGcq$g|5yJ;XOWkoviYs=Uzv1zP z+t~&BW_RxyY!w#=yj#FYq=tWV3m&n@n)O=Yh`u4QjcF2HpCORmkW zm%ZtYx%Jn*96_D|AgT%SFB7Z}viNfQta;9{X(lsG*e&Z!&3t3T@l+h@KK@*SFIiBS zG}I(xswGmyNY0AmQo6QY4Jn`A0J5(WMFNp0@@ZaMPOf0Oev5((4u{rPRdW#NS8Oxs z{|Ik>FSp=nkh;?uZ zS>NAhb>(6XtulbLzYEf&A5|$8<`8~jsYvB8=jNeY9hcGHJo#9E{SM5Uqm;hV zl3Gm8D_i|JwJx@Y5{J0trpe;H&gSi|sVx0Fn0u^ZmcBJR;c}?$J}x#)bN13Mcp`LU zR31Opg3D_A=f7@h1e9T6SUf(ioc+O$8_`9lO22-0teH6>Qm*f`j@|LJq@x>Bq{2JCA z!c>UzGY5Mb5G(`WtUKzJ7Yr`ZjU-%0N=esQ5v^)vn;ckW%%h6SV`FLb5bW7Qccz+I zyrs7(Wlc0$u#AC1=1z6&ovL;XqR@(ZiWA#8MfSHcidG-6iifY|sv;W2%E(jzW_vQ^ zQR*skFOkwh6& z_74>pmeeasI>^GioD5j(=3Fu zt6_ST{Fv$1K5Ah>td=)RXcrpaXM+)xWHyw-!-LsKk z7B;`qaoql~L))_BZ=6r-nw#$Jyy)6^U958P{_bAOUW~@Y_-(s&22?7OsyHd|!3X>J zXWfSB!0gWsx&JtV(PyW|rGs9ZnLAE#v5L74l7S5aJPT9@>&}SNFSu?m)7` zAxFgv2c=pRq97c`Nlyp>%FRVfxre!J1OdA=!X!cm!@ z|E1Q*h6%?=FcH%Zv&y!lI55 zF_C_$4tqSpFW`>y+dd8c9J%?5`elSNTnb&A3zyt-`JAt={p>>xbdu zW4Is;t?6u!7yxOE@YM{7TC%KBaM3Uny-WEDuBB3awZsZCXj%K{EwQ$14TQod!C;nu zWA-2F^1Evb2K%V{*EozF4^h~|lRjaVDl2U%_o&`c7;!k6>YQG20y<}Aa*cX5Q15k^ z)0^T?93o8xYFwRFD^#-yBiQ9bo9Aymg+~fKHYSSTeF*qZ<%rpoGgDJ1k7{bS-cDe7 zE6tH?VXxhCryUuDeD^AyTafnH7#%8$Xo~N$u zi$*Q>`jI;#+xj8v6FRWjBy7w{)uv;2)5%ce+>w1ct_#jzS0!w78EE93K+5&BGoe-x zzq!owO+s7{J1Wv50cHztgyH(Go--b)m2%rL6CYND-|~~EdMNuxASLVS?PA;A5=FE6 zLnMNy>SSC;_RRcnie}uRX*5@4ujv0ME>rWEkjJS5a+2|4+{+KbQdAZi zVgUc>Wy+(gw3=5{29s&~p9t(mj`st5KBGiiS``(6Gp)(n@V zusPCtW^Ndx*3aa1&y-(B;kr)FD9}*GqYHtior_D)VHpvAvfx7wbLzD0@((%1RcDb( zd++TrqiA35dUOZ4ralUOd`iL@RjHnHD^4f(cOaiyg!j}z+XqkGqt_eRTRD6I)68HC z1J9efv0W3VUm^w{H7%#&n&RO4jMrvlai%ZR?1hwbKBsUF6&=(^< z8#FYH#Jt`?^52g%q&mDy2#684Y#cnr0l>FW+n<3tFcVV5{cQLU~T$Rmi36xUlAmS7mV8@G70eLvxNB%+GuJo@A( z^m&f&4vUAGbcV2!n8&`)c;p*z#cC|aR6SvV)%wP&c9VxxWBZ#>Qoya5^j%&K=G%e{ z`X}1uF;8pM!}U9wUPxSBQM7ver+(@pep*(u(u9T@@2{*fru~aTyth{qw(7;@q@67_ zsJta&kzY~!G;_4GQMBZUiw@G0#muOp^EDLNS&2G;pE|yu;!9xzwwGL++@QO)67u7_ zrtq}I64gndjsE5XU??YZ8Ygx$&Y}1pD&SiOBrk|A8mD~y^~K~BSpaAw zhdl|!*1El{smNDN7p^JfR$1ru2QlIGxZSt#t5@(^kA-XoXA3sQMSWw(!e@iTsfa5o zO3)+m`4+)Rw-s8l6^fsm9wWZ6M>uo0mp?HDB09%=(((J@bdPT(d)fk%ldAiGYNGCGt4eg zJj+klN=_$g+>>()YJ>j67QG-3@U z?j*F5NNb!bmrH`9L`0lSKEC1E$>9w`VUn+Naz4?iU+pqda2za}qm-MpsI$GwkC+j~ z3f75NbW1629$1AZIa$fEpNxp9T_;&xPrp zn!X=%I9jA5Ahz6V1)GmR$TT<;77j9zW=ahFAG{A-Fg5hA&hCUoXnp!8GD3ns(g^qT zzp}Uf<6z)}VV+BY`wJ-WN!6X5G3cqZXY4PXvJ?xlh~F8NKt=%pe1A+b5&eyr!I}~S zVZG@wba{qoCm3nV8MFL4zYFkUaiJC%n&w$s6b@KEecYFu}oy!rg{KJ{-Oq0$<&QnYTONQs#y1x<8-KiEx{R?T@>N)dol$MN3$% zABo0`a+EJ8bta>dBlU~f?HZso(4>&JKJ=NaZha(L-oqi(H4QlD3;&i*j&Bnf?KQV{ zH=!figjyqT^X)Jpx3)&ixEPr*_kioemU48)9ajgX6}-=V&HgQ_+G773$kk3~uCxOD zeEw|eyiq}QBXq9$V)2n!g48w7m*_nVRPrpPZh)=d}T) zGXnIXhfH+D{@Y#dntE=u697#Kc~EStX4Bt3(3On6A04GJN4(?hRb%_bT8Q+FnZWxs z4-aK3i=JnVkQ0Bm4}`|ydc*@VO5>F0C_Km;0tU>Sz-ke+e4QfKWF1NJhnhht>j79) zNyxqGZv?-+_$oUx8Ix5Tvu)>rE{{2Q8$U6L|9;xiZy{vcWR@2L64|U7# z#IXFYnKgkPnB)+C^_nxI`{I@!Jin$aIA{#)z=vR~O?NrJ40b3e|NC~FC}Ue*L%j6R zb3hk*XK?zea)>dkcVlZ zB3Pou+DopdzXmK4$B z!ro+am@&>KudRn<`1C2scypbs5T$cNObZ+Yo}?=1L%{Dj(Fl|8#x*=a7lXvJ3EH3Q zm%3$iL{?M>e|_#|(AAb>_c^6>EsD`R%8>TME-;~>`(WHR#af6pu|g_|OLf^y z!Dv!r!}LEpIFe>wO!D4r?HBRc%HrKG)Bo#jauVVM%8P2e)KYC%>j#} z>2(mmS^fWzI`lueMnpoOsdWsv7b)rr8;{7aG^Fb_L}x<3<1**~hV?{=1OV4SY3!jF5Ss>MP*1yyU}bFo#K!AE zjAy*DXNDK$cZD91U4{uTybFx}Hb@@?XpYTAzB++?;NL`|E z+nQgZFmRgZT$|x_@)SLJclBB?UVO>~_I{J;qPjNt*W?uu;C|WE6WJvF;T+WIXS}_3 zoBIJZrw-nBc`jL6x(=!Dz}_@}>7&li%eqV%f3`pbiOS$wz1TBhOz_Wp zA}bqKXFGUDVFFl}>885Y{Lkatz+X<)Gtcm^TQ~`jf@9~HwXa6j^|dGA!gQsMcrENA z{mOA4kTOuXv`$o@(!fX&9;{O%`}A>@|tVBRJD z`B95yq8aNDnn3;VsqAuPr(`1IG3AKNN#3Qm>pVDmnv#vM852O{lAH=(Jv>U%vd^2_ zD*DCAs*b*R6t-utj3cobq>S2Pj`cIgsi+j<^|Ew#k0C|M$ScftQL_4$O%RLm6y9OQ z@{C5f-*|bUFqd~q|G6EgSiGpzD5LhiiLpM<{P=fQql;l4gBw=0Za&@fXI@{bVf3E;9^D*E=Sj-xbJ)y@wm&Lm-S{sKSgctTNH>l$Zl8!`j#HNfYYmlKku~K&S zu)L|Lg|$A(qhq)t8Lkw@xR4)NDO*AsL+dN`ildz&QI~By!A*4c7B8e-j6n`AL~{uM zv7%J83wIM04yhvlm>20RijJqJ>6`LLESk~Pl5J@J3&+J{@UV%kw1f}d?+S-4fRS(B zl$XrHnE==xj>qY8P;qGi%GKfFf!N;7t#z!SEM0Gn@t0@l5h|*s;1?Mt`5})1LN%9= zAtM;crTkrVUtCA%*pS(K8sQuMNW3F?HQVZyo7N+i>D&4?u55sI;|TgjQ@c%e^+4+W zx0yDxb5F(6B=QPuAPaCb)|N-0@0}~YRjaV>*vPvkeCr4HsR^Set>Vn+5)E*_oKQ`j zSPB=`5Ec})u5R~tPnc@WH5)jdv&=)d%R@l*m;=9 zKOO`-LybRZ)QqK;oUT*byFAfl5a#PMIaIh`x40%^k8~zg^52NC2uDEtoc(q60jk=q;_872Tyf57xB z_;2Rt0TN8|VQHVB`&U3%&gY*UynyQdNg(@wyOiMkBaKwV59dAbBHV1L*)f~pRbd|t zwtbrOCnn@EF)`&5UQOx4h7i=6EZ1s*`ud7!A%2d00|vfwlm@;;M-6Fyn@Nl*2mR3AkYhX22=Y;V1p}wps{~X5Uj)Ze!JlyevLco5{`?5nsepd)_iMp#1h$bo`%VBMq;VUwKFy1a*edI^Alz2Ia;m}p>Q^i=#V0#dC8WUiR%6}U%V2#BupqU(G36G__RmbdU^mz`^klzEc9tV={@jG<0eWuqP ze<-cE3?)OXZEOy&!_w$d;&gRhRAVz!nBQcgOLT*@`kIL5^D51Q22aDVYw4aKY}qBS zWzPr2etbak$qWq$sPC@7S5y}A9QQzycD%HKkoI@%Sfky)m+g1y97tJ((o`aKS9ghVG#AV6T6SxQ=q(9}Y>Z^itDmx1Oc+NPoqni& z;89Om08l)s^}&cIxP4>yh+b3kc@eDk98T;JrBiNA1^ld4;-*_~R$nTfMDFa}u-*<- zfEw;^O(jE`E>`Z7DDY>7CYek<6S^Nl_6@hBMo2GjS=Asp9# zu!Y(G68FNkN`ngMdu5mLMzle7;gp6MfndaJZ@QtC-a*IPl5yBRfb z5^bbNKPm*L+10hVS2K@^KmCGJTm6%pTxxAYBR*d1=jUaEJRGIz8-r_;G|D(??mcTG zDy@%ORlwk>09oz`4JA3R2E~GiHN- z)RGC3&^Zo6qXt-Vyrqh)32GDl!o;6})JxC6i_V4U11|HN`PTfvgwoI^8~tsRvcxlC zqqX2X!%=IMSGc2lXB;;pl>9;yBV%kQ<2{FK;bS56{Eb#pRPb{H_FS@?`|A;Wq9a?F z0}(Qq)i`Z>u7Ez@@g^r+f2>Bh*KeA}YCiPTV5DrfF2j6x3GWxw5BApKFKJl6^A;CB zjn*9@jb@~7UJmMSNN~OxtT3Kh84g1{IlDSXOAJ!L=WnQt_V{3%8eeWMK6FIaRpaKM zb1~s4?Ha7zym2N@e?6s=YlLCioTtb-c^VpZvCTP?oK)IA(gP75DgCmZ0><^;HtYpV z8ph>D78Iye6yBu{`+>z~E*sY9lAWzFR@6Eg@r-%Ir@Mk_5bXIvckHl(sYytb(mzz1 zt^&wKlsYcN!iRI$c~6ai^45+vg-&K(?}exsW=T>mQsE>f<}x!LWM`en5MOj!i@bnX z1l`Rt63_4L?agbyaW1;p^VDWoki=}wPxp8x`_U)RMmm-Yl`D5wAgT-Bmr6Dz`dF?Zlu+-0c7KK+HtgQ%&(%erHMXm$Q+EWe_8s}AQ_ z5gvwj%da{YQUllWw+hI<6;pdAU<1?NJkb1}4M25z3G||U1=N$9x?kvRybmL2xPKFF zr@w^DXuW-kpgkFlv?3(1_nu|Kv@v#v`Jy1|;SQmI`3Un)>qByiXD&G!n;S? zj@4z;iXG&;`%rta%WEqiaNOz2TvEQ<9V&s90v;W3#@=8_HG!mftMU9LG-LkkR~2id z@_EK($$Xa$`}wqY=1oycd@J3p`eWchW;FKr%{3j*^wKiFIyZR#FwKQFv{6HG1k*bA z>4&<%RNw+p$cM>fZ(1SudgHJ!Y)HvF_TV2H=9Rs|I~))smeCI&bl9YtwF4;nSITni>E^B*gO zO#LL~!TyFz^!M611UK74sjhNdQ?(EF9|Ll?H19`qUF7xKk>>k>J%YOk~34tk> zmm===?6mjzca6|H3e(c7Q9~k>;C9!#$1?H5j88sXugNim?K5twulsjnWn}Sok|OBX z89$Tc%W%xhs@y}ozQ#nfXGwZ&Pg+I+Vd~{g@m&fHgd?8|!96u^KjwV2l0U_gP3j*h-aCx?S@QTIomHzMKPk-ipmc6Of8{XF&K zr6>I#rFtZ^)ip6O@pylY@JdeuCYZ%Iz$ujA=4V8u7{~e;awCEASH5sCE5Z*B=EA)q z00X-tC{3GnJ2&>S?r+UQy86i!Ufts75C76%Fk!ppbV=#P^5fhcAP`LP6+e@sx=D6G-qU%!R_ z03fKDFiugQPvrSso3{1idD6u#CGF=LB5yMupL0i`ytuaMz2z^PZY=1=e+t3aimrap z(|@`__oCZcLlO#<;ZlZLt#cUK`z1W%(l4eKc56IBU(*fSv=``raQ_b>_m-}xQR1{B z7MrN*^@BtWI7~&48IRn}Es+IPwUqFxS^LDQHBlmCS73&>4myYOC_k91?7@Q%6G}+) z0z&$!dPLcd0^|RyK;;!=KC~ydEqDhQ{jb2wC+tKOW=#Dsbp9D)nU#^Xg1?nn zm&+wIOnFLJG^Fz{K8+6f(uoVEy54YLXM;Rk{}J+s^Klu!Rg=(9Y-ylHt4aNDg)VQu z{#HpaNGsbAe+#03F>s3GPHtCigSDs%je=4CH#IH?Acvz5y1Dfs9D_W`p^U5O-%XoE zlyX2t-x=kdWQWOZeKX^YrBJF-ZhzZ(YO=7rFi?bL9IgR>;9n0dzP4%+wgfw;6vm^Dm<)y`id`?bsC_EIo|2@>fT@ifIV2g<`sA2gtm&JLbSsDqj zAQf1rbiqqrkzg0riXZW?mZ!hJPE3g1>QP;Nyh=t4${jxso%yAqo)~7!WRr~N*cP8w zyoh+tW%`$>3pxvxMiXTyudS=9ad2dDc%xyT&;$4LEk^o$yAnU)RAE?4SNR8afM6i@FBni`!(bH&=H~;E?(jh#ZY^s!$-xL@M3~#SM>-~v zbmTN-9eSO7R)0F|*#fbN)cq@u6(4H5X?v@}=#EimL?%SM#-Z-8d{7YfR1N5(cmk8c z{lpWNH?~0~!Rqe_!D(ew`3Yqc$w8CR8Xa(MkU6a4pyU4jA8+>9*n zL(&g;%)T*~GK|3Rqn3%r2b}|;+8_6#M;+IGCmu>fR&F|s)7^jt# z_rxj|@2nt!PdduBSMh5t3A-K%8E+t_YIvq~BKL{5@N$HMKY#XL003~*Xos$0eJ_gI z;g3?#$^_c2>l=!tj-TRbWZ(QPJg_6jIiPf|wJsod0f3A7gD!;#q%Leu55aY@szz1E z#LNjUMrdpHAGWI}YB;0}t)x6Wzc)ut{T_S8>+7bMlXL*2^)z(Fa<~wiC*n|)=p^4l zDZ6RlJBla2`#Eq)WO`_S!$4~=^JDE&rnmd8fg#r0@HEc&w__<;`c-;Lt=IiNo_EE~ z{_6r58sZ=C?CaaZO84_oO0?qI_a{|`^|gPzBlFchTVNb%_T9Wk;Y`e68&uO)XQaw` z>90#d&N|KS);SwR`u_694bzp66$K6(u)FxPyU-&Y=OFL84VwBO8z8eE$~Xa_MazNl z-;+yq2sHiIO7$?;XXP$Bwt2$aUeE4D-JR5!H#wA}0&IFEv}mza&tDfO;^LhwA883&sa*=XZwxciihDZ7b9R~w$vXhCx_S% z%(Ae=F1(+xiyyQg9mq&Aw8E+(Kr=+~C0=IoD*V&4Ld@QALwml#PjLWG18N0(3=u}_ zxpe&Ci`@(|iIcG27-wrnPb&1J*bjJkZNCMmO@_wNC+y~9xAQmi`EI35wrCL3zI=Ie z+5h%zRfvGQ2pxR@rECl`OJ*<3cJR9+lxVE(lWYwAh8r4ih(W~3x|KylO?}>Fi5VO4 zIKknM99Odv_vn$Kw34+hTfkid?l0r@GY&TDx6MxziJUyy(ABnDOS}H~^5;2q=SP{n zd+wnq&@@f_nO%NM2H05a;Y7oshs#j}u4uWxtie^h+r8FaAx{kazZc){j>^XmL6n`_U!|BFFrq>^3MK)k)36F9$JF{2om&dKQ9- z_-WI%24Nt{??8uF$mr|&fUHvOo}a30UDo5~#)hF`p4;Hg$Q@BywsyakX&JkCvvb9A z8&*JbsYGd3!=mp8A1MO0+2=~v;7iNQNvp%7eS%uUyf|!?Oit>eYciYaGEk}m3*(2A z7O(VZcdDyrQj@`w*c>&`hI0B(0p;)*Q+}CHSV;tyUFx!YH6r5U9nHl)`I3g4s)6f1 z^DYXUb45?t8SeYZmI~)P5qy{$p1~jhBvBsR^uzLN|JqqozMzj(t^KNKN$BK8kdvQP zE;D`D8B4_Tt$eV&NMUYn&xY~WZ+m~tj3upq^Aa85Qschw_cpTY)$)!za#>`2k@V9;5zVx)dkyL(DJ z|9*_61b?03(pt$83)ji=r`l=GG9-dJsn4{rg`AS6exnGy=^8{RwimeD$3nvYfOVNu z!+z=a4u>3jILT?vcJh1p83N0B9EYa;x1mMzkAN<&qq>jQOJCKxuEdU#wqWXuDLdVh zrwblt&9G8N`Os#&sdIN+N4y;F+19}1fuK>j`*yw74ZN$6QgffDkq zQt*S4&s+_O-ZCQ}kAE~p;C3uIhtzQxR>RZ9n zkq`k~5jsB-qcT-qKvHs3fcCA>L*fUoT!-VQ<`KDtc&cMWlqzBhNX2ruR83dZ*mI~Gi4wK3vOD$_W z4`)n$-LGTt-==Ex-r=$VZ*P{u&Q+o!b3cqfHNU>QcKh(^wDQ#uF zYx`jYRJLP8YlDF}E3X6mRrG$22`^7OMFy3sEACC8+Dm=5_Sl4If^1_Pcjmy`kBt{I z(M8%+0w~`SV&ac03=G{b;bVrNydq^mSJ(7lQ{PlKnAI zlLT;11)s;Qcd-m)Z{p9(zHSFMeFaMlHW-7Q{d?o!K&7{Dim;VPlsfz&+Ou{IoYFtkfl}7H41^q z|5|0X0pLf+uAiS!Un&r_cF!!nQyJGjRA(ONr~b9n$9b|C`qSAIm1D9?S;RHM@p7S& zkHW3IOha+P_~>H5JKlhg`8A#^x=!BwEzvyDCPz+;rc%Ow&OznL%eWhcZbJ#Tmxq@l zhU=COuZgsJ1LM5868IzyxkmVI&A8L}9x=1FzP9Oq|F$c+{+v~3U=W$Y=BOPsh>LJt zix79%VC)ONyo>;j1{>=rS7WT?bN`Y-3s=MYeZ1%P`=!sF%MzWjN^x1+nq?Qrl1S#owW`-~WFj4q19z9RUVQ*oV!OcRHXKjH z`^Z898tNZLa{hH%nTos5$8ORU-Jo*Tm4^95%J$TDY2(VDCg-D*jidebUD~Cc-cw_l zrQ2;FGD6#rdxC|rng6AN1>gLCuVBe+{D+s?3+mY(oz|GZ&kMOlAAQIo;0JMXt~v(P z;7A~PSQY*VSOCD^{tjVQs5pV^?7Du(n{P-skH^t)(eLNKt)NF0xRR^L&c8@Vu*Lek zO*3gB3cp*;z+idA2F3Vqd1W(h{r@w%l#{P9b!$^a|0MZYr05DvgH~M4xgQF1ls}LwFL34r-SL{4W%dn;1Up7zk0u`-b$E~@`E(Fw zv2s2m`r2}Hesr9Hn%B3V&;h;@eWraM4BQ}f${o!NRT88+Op_P!oB|6Xr69D`9kK?ss|y>tcF6rl5eC|$YI_4|*~6|jrX zh03>%nxzAOA7-C`byzLzyT1-Gm+L zHn&f&CXIMnWFx>{*q*LD?EgD?l&KB=%t^8LMEn0#a^>Mr?R~s7yvjbZhe7C~B)cKT zHkfK??2;u>jHRq&Z=~#5ip!;JGh~dihC;*`ZlkjAlWj!G8e!x;)P0|~+kM{WdH*|q z{N|jQ@A=I+pYLb+nj7~InIr`_8*$1N|8tu)83~y}DWsgZ8pChn=+#|sBJHwRSl!Mk z!QyFkOY+@bAJuvo2C!ik6c!?ZlU_Y$w>BVVeS80bA;O8a{3xTs9QW-AD1LNr?eUj> zzpL}{?(i`4*6m#|h8ufwQeD^(^$U3giCsBF5>^{HijE8QsRNpT5a*s#$c%et$!(rp z`86U=FO58TgoSx1W+h3h{bL^b+;GB{y%+kV#a#h~jlO=%{B2%4G-8c=lEU>EAWP`LrJ3r zJ@~?1D<8kZw(btYlC!z4oDTigrWLOYKSi1v5x%v4%BiuuWBobkAS9+<;pDK+Re?M# zY*^`PuIHbF+zO8ek(9G5T*NrDCdF2lmYSKZYsX{6<_-0T`3-}OgBEXw-}MfU zo`x(N3CHUf6qP>mgbEhrUso+y5-uyCn*ceSn-+hmkG4k$$J2mjp8waHzkptko1mEXYZmy9PfroB2-l zW61~kf=hRYL_=-g*?RxCch4(qWV8cKIPr;tk<;Y>s9Z*b%B}zM*;o3_epfO>T9l?j zF9YlkOhlM^Rre+DzD0n#LI2GcK5va`3yGW4`Dng)VBIYsy@ksf7m*!z>F$Pj>D}jU5$-H!y6aGthC`lO#Dp^8@9nmGz%9Ewxh^_rzdsUv9OnxMzylj+Ke4F07AGM?@P_*hBnp!kLf`XVng{BggNe+4^J!w=N_@Sho3^Fz(mRBus(Yg&k z%TpMyDo-2(dzE?#Yzf8gkdDQxp^v+#g->h=o&;@b(sji9``S zptuM*n4}{wV^fUh%It=aqf&ZooaQ^Z2gFxRnP&a?g+scYDXaRQW+~O7w%$(gV_i7L zmS}}Xy&X`Wn}_4XBy#RR5n6Y`MN=Kt-?8~9DKYN68Cw#ydj?a*7S0P36Q$7SF!0$3 zwRHHCKL_WCWp17`Pzk>WyFOG21L7`^dmzP3W$-2k49tQJ+LIf7SMp0=Q`m@(p z_Phhw1F+H~3@6q~uX}e_R4AT>pz|Lh1PLp?Hf;l4X8SlJ_p{Dk%*;XSnzRw?QDH4^ z2>Af8q4qMjyuCk>#(;-}QROFWqy}M5!8OwXlY0wRO>FNtbpIIeLD~=rkP4;W$9~`z zesM&U%|5KTz+6)dm?Y^2XfHmKERWKub!|2&&%^X)_MI`iRR-eJwLTzFo7N)7stkAc zV7Ka1IDA2EDanIw79+pIGl|#(Zl*;WAZU^t1=&hl&nv7WX?Tf3;{mD!PQYi6PUL=g zsCRvEmD_szUQ3zSt z*8j@fQROsX>=N;Aes6}dL1Wa{ZU^l~z~p$Farx^*$D$M*29C!2vPe?i^M3qYp8001 zrTwO6hwk2BwSg7A(77j~z=R5*7(fAf$lW>mXd16c{q-09D*Xy)gaa%;K+O%za2?bQ z)YBQjtWY)I$=8vteV#fVDU!CN)@F8SD6rMBEtcR>dqGI7(GS_4@dF7iC{-xEiJ@3r z(lhRLngRhW|-*?%91ojZw=*V z07@PHz0}wPM;u;(!QYEge+U*MchYP!L4FKSoLeIQ7jph}uj#K9a^2?okI-9i`7{{B z;=Xr3e_dP80K2nngRJI{H}jB-9}g5s5J|x7BmP}Zzeav?3$?6BfQ%(S(RoVV7l!Sl zAtPn^P0Y>tKZAeJBlcGaxsZ9u^uKb6=HGLPae|)oeQh~N&j%BZMUSc#Ogp;VdiSlF z`9*65{Iaug?QVRuKU!m}zW7cRzihn2XKwuqs(|GeP?al?86U#HL2(^VtYG);gT@A u_*XZG)q$8o_go6e`oInc#$np-{;R6Zn}I3FF$fsOdBE7 + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/balking/etc/balking.urm.puml b/balking/etc/balking.urm.puml new file mode 100644 index 000000000..b0296b925 --- /dev/null +++ b/balking/etc/balking.urm.puml @@ -0,0 +1,24 @@ +@startuml +package com.iluwatar.balking { + class App { + - LOGGER : Logger {static} + + App() + + main(args : String[]) {static} + } + class WashingMachine { + - LOGGER : Logger {static} + - washingMachineState : WashingMachineState + + WashingMachine() + + endOfWashing() + + getWashingMachineState() : WashingMachineState + + wash() + } + enum WashingMachineState { + + ENABLED {static} + + WASHING {static} + + valueOf(name : String) : WashingMachineState {static} + + values() : WashingMachineState[] {static} + } +} +WashingMachine --> "-washingMachineState" WashingMachineState +@enduml \ No newline at end of file diff --git a/balking/pom.xml b/balking/pom.xml new file mode 100644 index 000000000..e5b8f11f3 --- /dev/null +++ b/balking/pom.xml @@ -0,0 +1,46 @@ + + + + + java-design-patterns + com.iluwatar + 1.14.0-SNAPSHOT + + 4.0.0 + + balking + + + junit + junit + test + + + + + \ No newline at end of file diff --git a/balking/src/main/java/com/iluwatar/balking/App.java b/balking/src/main/java/com/iluwatar/balking/App.java new file mode 100644 index 000000000..8fb0edcb0 --- /dev/null +++ b/balking/src/main/java/com/iluwatar/balking/App.java @@ -0,0 +1,53 @@ +/** + * The MIT License + * Copyright (c) 2014 Ilkka Seppälä + * + * 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.balking; + +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.util.concurrent.ExecutorService; +import java.util.concurrent.Executors; +import java.util.concurrent.TimeUnit; + +public class App { + + private static final Logger LOGGER = LoggerFactory.getLogger(App.class); + + /** + * @param args the command line arguments - not used + */ + public static void main(String... args) { + final WashingMachine washingMachine = new WashingMachine(); + ExecutorService executorService = Executors.newFixedThreadPool(3); + for (int i = 0; i < 3; i++) { + executorService.execute(washingMachine::wash); + } + executorService.shutdown(); + try { + executorService.awaitTermination(10, TimeUnit.SECONDS); + } catch (InterruptedException ie) { + LOGGER.error("ERROR: Waiting on executor service shutdown!"); + } + } + +} diff --git a/balking/src/main/java/com/iluwatar/balking/WashingMachine.java b/balking/src/main/java/com/iluwatar/balking/WashingMachine.java new file mode 100644 index 000000000..fd4455e70 --- /dev/null +++ b/balking/src/main/java/com/iluwatar/balking/WashingMachine.java @@ -0,0 +1,73 @@ +/** + * The MIT License + * Copyright (c) 2014 Ilkka Seppälä + * + * 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.balking; + +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +public class WashingMachine { + + private static final Logger LOGGER = LoggerFactory.getLogger(WashingMachine.class); + + private WashingMachineState washingMachineState; + + public WashingMachine() { + washingMachineState = WashingMachineState.ENABLED; + } + + public WashingMachineState getWashingMachineState() { + return washingMachineState; + } + + /** + * Method responsible for washing + * if the object is in appropriate state + */ + public void wash() { + synchronized (this) { + LOGGER.info("{}: Actual machine state: {}", Thread.currentThread().getName(), getWashingMachineState()); + if (washingMachineState == WashingMachineState.WASHING) { + LOGGER.error("ERROR: Cannot wash if the machine has been already washing!"); + return; + } + washingMachineState = WashingMachineState.WASHING; + } + LOGGER.info("{}: Doing the washing", Thread.currentThread().getName()); + try { + Thread.sleep(50); + } catch (InterruptedException ie) { + ie.printStackTrace(); + } + endOfWashing(); + } + + /** + * Method responsible of ending the washing + * by changing machine state + */ + public synchronized void endOfWashing() { + washingMachineState = WashingMachineState.ENABLED; + LOGGER.info("{}: Washing completed.", Thread.currentThread().getId()); + } + +} diff --git a/balking/src/main/java/com/iluwatar/balking/WashingMachineState.java b/balking/src/main/java/com/iluwatar/balking/WashingMachineState.java new file mode 100644 index 000000000..9d6cf875a --- /dev/null +++ b/balking/src/main/java/com/iluwatar/balking/WashingMachineState.java @@ -0,0 +1,25 @@ +/** + * The MIT License + * Copyright (c) 2014 Ilkka Seppälä + * + * 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.balking; + +public enum WashingMachineState {ENABLED, WASHING} diff --git a/balking/src/test/java/com/iluwatar/balking/AppTest.java b/balking/src/test/java/com/iluwatar/balking/AppTest.java new file mode 100644 index 000000000..8b647e1a6 --- /dev/null +++ b/balking/src/test/java/com/iluwatar/balking/AppTest.java @@ -0,0 +1,32 @@ +/** + * The MIT License + * Copyright (c) 2014 Ilkka Seppälä + * + * 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.balking; + +public class AppTest { + @org.junit.Test + public void main() throws Exception { + String[] args = {}; + App.main(args); + } + +} \ No newline at end of file diff --git a/balking/src/test/java/com/iluwatar/balking/WashingMachineTest.java b/balking/src/test/java/com/iluwatar/balking/WashingMachineTest.java new file mode 100644 index 000000000..2c7527676 --- /dev/null +++ b/balking/src/test/java/com/iluwatar/balking/WashingMachineTest.java @@ -0,0 +1,62 @@ +/** + * The MIT License + * Copyright (c) 2014 Ilkka Seppälä + * + * 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.balking; + +import org.junit.Test; + +import java.util.concurrent.ExecutorService; +import java.util.concurrent.Executors; +import java.util.concurrent.TimeUnit; + +import static org.junit.Assert.*; + +public class WashingMachineTest { + + private volatile WashingMachineState machineStateGlobal; + + @Test + public void wash() throws Exception { + WashingMachine washingMachine = new WashingMachine(); + ExecutorService executorService = Executors.newFixedThreadPool(2); + executorService.execute(washingMachine::wash); + executorService.execute(() -> { + washingMachine.wash(); + machineStateGlobal = washingMachine.getWashingMachineState(); + }); + executorService.shutdown(); + try { + executorService.awaitTermination(10, TimeUnit.SECONDS); + } catch (InterruptedException ie) { + ie.printStackTrace(); + } + assertEquals(WashingMachineState.WASHING, machineStateGlobal); + } + + @Test + public void endOfWashing() throws Exception { + WashingMachine washingMachine = new WashingMachine(); + washingMachine.wash(); + assertEquals(WashingMachineState.ENABLED, washingMachine.getWashingMachineState()); + } + +} \ No newline at end of file