锘??xml version="1.0" encoding="utf-8" standalone="yes"?>
錛堜竴錛変粈涔堟椂鍊欏簲璇ヤ嬌鐢ㄨ鍒欏紩鎿?/strong>
榪欏疄闄呮槸涓涓妧鏈夊瀷鐨勯棶棰樸備絾榪欎釜闂鍙堜技涔庢槸涓涓緢鍏抽敭鐨勯棶棰橈紙涓鏃﹁繑宸ョ殑璇濓紝浣犲氨鐭ラ亾榪欎釜闂鏄涔堥噸瑕佷簡錛夈備笉鐭ュぇ瀹舵湁娌℃湁榪囪繖鏍風殑緇忛獙鍜屼綋浼氥傚線寰鍦ㄩ」鐩紑濮嬬殑鏃跺欙紝鎬諱細閬囧埌搴旇閫夌敤浠涔堟妧鏈紵鏄笉鏄簲璇ヤ嬌鐢ㄦ渶鏂扮殑鎶鏈紵鎴栬呭簲璇ラ夌敤浠涔堟妧鏈憿錛?em>PS錛氱幇鍦ㄨ綆楁満杞歡涓殑鍚勭鎶鏈眰鍑轟笉絀鳳紝鍏鋒湁綾諱技鍔熻兘鐨勬妧鏈緢澶?/em>錛夛紵
涓嶇鎬庝箞鏍鳳紝榪欎簺闂鎬諱細鍥版壈鐫鎴戙傛瘮濡傦紝榪欐鐨勮繖涓」鐩傞」鐩姹傛槸瑕佸湪涓浜沴og鏂囦歡涓紙榪欎簺log鏂囦歡閮芥槸寰堝ぇ鐨勫簲鐢ㄧ郴緇熸墍浜х敓鐨勶紝浣嗙敱浜巐egacy鐨勫師鍥狅紝log鏈韓鐨勭淮鎶ゅ拰瑙勮寖宸ヤ綔涓鐩存病鏈夊緱鍒版敼鍠勶紝鎵浠ユ兂鍊熷姪浜庝竴浜涘閮ㄥ簲鐢ㄥ榪欎簺log鍋氫互鍒嗘瀽鍜屾竻媧?/em>錛夋娊鍙栧嚭鏈夌敤鐨勪俊鎭?br />
浜庢槸錛岀涓涓兂鍒扮殑灝辨槸錛岃繖鏄竴涓枃鏈寲鎺樼被鐨勯」鐩備絾鍙堟兂錛岃鎶藉彇鏈夌敤淇℃伅錛屽繀欏誨緱寤虹珛涓浜涜鍒欐垨pattern錛堟ā寮忥級銆傛墍浠ワ紝鎴戠涓涓兂鍒頒簡瑙勫垯寮曟搸銆傚洜涓鴻繖閲岄潰瑕佸緩绔嬪ソ澶氳鍒欙紝鑰岃繖浜涜鍒欏彲浠ョ嫭绔嬩簬浠g爜綰у埆錛?em>鏀懼埌涓涓崟鐙殑drl鏂囦歡閲?/em>錛夊茍鍙互鐢ㄨ鍒欏紩鎿庡幓瑙f瀽鍜屾墽琛屻傚彟涓涓噸瑕佺殑鍘熷洜鏄紝鎴戝師鏉ョ敤榪囷紝姣旇緝鐔熸倝銆傝繖鏍鳳紝涔熷彲浠ヨ妭鐪佸紑鍙戞椂闂村惂銆備簬鏄紝濂戒笉鐘硅鮑鐨勫氨寮濮嬪仛浜咲emo....
浣嗕簨瀹炰笂錛屽湪緇忓巻浜嗕竴涓鏄熸湡鐨勭紪鐮併佹祴璇曞悗錛屾垜鍙戠幇榪愮敤瑙勫垯寮曟搸瀹炲湪鏄お絎ㄦ嫏浜嗐?br />
錛?錛夐鍏堝繀欏誨緩绔嬩竴浜涙暟鎹ā鍨嬨傞氳繃榪欎簺妯″瀷鏉efer瑙勫垯鏂囦歡涓殑LHS鍜孉ction銆?br />
錛?錛夎繕瑕佽冭檻瑙勫垯鐨刢onflict銆傚鏋滄湁涓浜涜鍒欏悓鏃惰瑙﹀彂錛屽氨瑕佽冭檻璁懼畾瑙勫垯鐨勪紭鍏堢駭鎴栬呮槸璁懼畾activiation-group鏉ヤ繚璇佸湪涓涓猤roup涓殑瑙勫垯鍙湁涓涓鍒欏彲浠ヨ瑙﹀彂銆?br />
錛?錛夊浜?#8216;嫻?#8217;瑙勫垯group ruleflow-group鐨勪嬌鐢ㄣ傚鏋滆鎺у埗鍦╳orkingmemory涓殑瑙勫垯琚Е鍙戠殑欏哄簭錛屽垯鍙互灝嗚繖浜涜鍒欏垎緇勩傜劧鍚庯紝閫氳繃瑙勫垯寤烘ā鐨勬柟寮忔潵瀹炵幇銆備絾榪欎篃娣誨姞浜嗕竴瀹氱殑effort銆備慨鏀規垨鑰呮洿鏂頒笉澶ф柟渚褲?br />
鎵浠ワ紝鍩轟簬涓婅堪浣撲細錛屾垜鏇磋涓鴻鍒欏紩鎿庢洿閫傜敤浜庨偅浜涘闈炴祦紼嬫ц鍒欏尮閰嶇殑搴旂敤銆傚綋鐒訛紝Drools涔熸敮鎸佸嫻佺▼鎬ц鍒欑殑寤烘ā榪囩▼銆備絾錛岃繖涔熻涓嶆槸鏈濂界殑鏂瑰紡銆?br />
錛堜簩錛塂rools瑙勫垯寮曟搸鐨勪嬌鐢ㄦ潅璁?/strong>
錛?錛塅act 鐨勫彉鏇寸洃鍚?/span>銆傚湪Drools閲岋紝濡傛灉涓涓狥act閫氳繃瑙勫垯鑰屾敼鍙橈紝鍒欓渶灝嗚繖縐嶆敼鍙橀氱煡緇欒鍒欏紩鎿庛傝繖閲岋紝涓鑸湁涓ょ鏂瑰紡錛氭樉寮忓拰闅愬紡銆?br />
鏄懼紡---鍦╠rl鏂囦歡涓氳繃 update銆乵odify鏉ラ氱煡錛涘湪紼嬪簭涓紝閫氳繃Fact鐨勫紩鐢ㄨ皟鐢╩odifyObject絳夋柟娉曟潵瀹炵幇銆?br />
闅愬紡---閫氳繃鍦╦ava bean瀹炵幇property Listener Interface鏉ヨ寮曟搸鑷姩鐩戝惉鍒板睘鎬у肩殑鍙樺寲銆傛垜鏇翠範鎯簬榪欑鏂瑰紡銆傚洜涓猴紝涓鑸湅鏉ュ嚒鏄湪瑙勫垯寮曟搸涓坊鍔犲埌fact閮芥槸甯屾湜寮曟搸鏉ュ府浣犺繘琛岀鐞嗙殑銆傛墍浠ワ紝閭e畠鑷繁鐪嬪埌fact鐨勫彉鍖栨槸縐嶅緢鐪佷簨鐨勫姙娉曘備篃寰堢畝鍗曪紝灝辨槸鐢╦ava bean property 鐩戝惉鐨勬柟寮忋?br />
閫氳繃StatefulSession鏉ユ敞鍐屻?br />
璋冪敤StatefulSession鐨勬煇涓猧nstance 鐨刬nsert錛圤bject錛宼rue錛夊疄鐜般傝岃繖涓猳bject鏄竴涓猨ava bean銆傚叾涓紝瑕佸疄鐜?strong>
private final PropertyChangeSupport changes = new PropertyChangeSupport( this );
public void addPropertyChangeListener(final PropertyChangeListener l) {
this.changes.addPropertyChangeListener( l );
}
public void removePropertyChangeListener(final PropertyChangeListener l) {
this.changes.removePropertyChangeListener( l );
}
鐒跺悗鍦╯et鏂規硶涓皟鐢?br />
this.changes.firePropertyChange( "temp",null,this.temp );
錛?錛夎鍒欒Е鍙戠殑浼樺厛綰с佺粍璁劇疆
寰寰錛屽湪璁捐鎴戜滑鑷繁鐨勮鍒欐椂錛岃鑰冭檻瑙勫垯鐨勮Е鍙戞潯浠躲傝繖涓嶄粎闄愪簬LHS鐨勬潯浠墮儴鍒嗭紝榪樻湁瑙勫垯鏈韓琚Е鍙戠殑鏈変簺璁劇疆絳夌瓑銆傝繖閲岋紝鍒楀嚭涓浜涙瘮杈冨父鐢ㄥ拰鏈夋晥鐨勮鍒欎紭鍏堢駭璁劇疆鏂瑰紡錛屼互鍙婇渶瑕佹敞鎰忕殑鍦版柟銆?br />
A.閫氳繃Salience鏂瑰紡銆傛鍊煎彲姝e彲璐熴傝秺澶т紭鍏堢駭瓚婇珮錛屼篃浼氳寮曟搸棣栧厛鎵ц銆?br />
B.閫氳繃ruleflow-group 鏂瑰紡銆傚疄闄呬笂錛屼嬌鐢ㄨ繖縐嶆柟寮忎篃灝辨槸鍦ㄤ嬌鐢ㄥ緩绔嬭鍒欐祦鐨勬柟寮忋傚湪Eclipse 3.3 涓紝Drools鎻愪緵浜嗗緩绔嬭鍒欐祦鐨勬彃浠躲傝鍦╠rl鐨勫悓綰х洰褰曚腑寤虹珛rf鍜宺fm涓や釜鏂囦歡錛堝綋鐒訛紝鎻掍歡浼氬府鍔╀綘寤虹珛榪欎簺錛夈?br />
閫夋嫨RuleFlow File銆?br />
榪欓噷錛岄渶瑕佹敞鎰忕殑涓鐐規槸瑕佸湪鍚姩瑙勫垯寮曟搸鐨勬椂鍊欙紝鍔犲叆鍚姩rule flow鐨勪唬鐮併?br />
InputStreamReader source = new InputStreamReader(RuleManager.class
.getResourceAsStream(rule_path));
PackageBuilder builder = new PackageBuilder();
builder.addPackageFromDrl(source);
builder.addRuleFlow(new InputStreamReader(RuleManager.class
.getResourceAsStream(rule_flow_path)));
Package pkg = builder.getPackage();
RuleBase ruleBase = RuleBaseFactory.newRuleBase();
ruleBase.addPackage(pkg);
鐒跺悗錛屽湪姣忔鍚姩瑙勫垯寮曟搸鐨勬椂鍊欙紝璋冪敤濡備笅鏂規硶錛?br />
StatefulSession ss;
ss.startProcess(flowProgress)錛?br />
ss.fireAllRules();
flowProgress 鏄竴涓猻tring綾誨瀷銆傝繖涓猣low鐨勫悕瀛椼?br />
榪欎釜rule flow鍥句腑錛屾樉紺轟簡涓涓畝鍗曠殑瑙勫垯嫻併傚RSA灝辨槸涓涓猺ule-flow鐨勫悕瀛椼傚湪榪欎釜rule set涓彲浠ヨ瀹氫竴緇剅ules銆傝繖鏍鳳紝灝卞彲浠ュ垎寮瑙勫垯鎵ц鐨勯『搴忋傚湪浜巖f鍜宺fm鍚屽悕鐨勫彟涓涓?drl鏂囦歡涓畾涔夎繖浜涚粍鐨勫悕瀛椼傞氳繃鍏抽敭瀛?ruleflow-group 鏉ヨ〃鏄庛?br />
C.閫氳繃activation-group鐨勬柟寮忋傞氳繃榪欑鏂瑰紡錛屽彲浠xclude涓緇剅ule涓竴鏃︽湁涓涓猺ule琚玦nvoke錛岃屽叾瀹價ule涓嶄細琚玡xecute銆傚悓鏃訛紝鍙互鎼厤浣跨敤salience鍏抽敭瀛楁潵鏍囨槑姣忎釜rule鐨勪紭鍏堢駭錛岃繖鏍峰氨鑳藉浣垮緱浣犳兂瑕佺殑涓鑸ф蹇電殑rule鍏堣鍖歸厤鎵ц銆?br />
D.鍦ㄤ嬌鐢╮uleflow-group 鐨勬椂鍊欒娉ㄦ剰浣跨敤lock-on-active true 鍏抽敭瀛楀湪姣忎釜rule銆傝繖鏍峰彲浠ラ伩鍏嶄竴鏃︽湁rule琚Е鍙戯紝涓嶄細閫犳垚寰幆鍖歸厤鎵ц銆?br />
E.濡傛灉鍦↙HS閮ㄥ垎錛岄渶瑕佽皟鐢ㄦ煇涓柟娉曟潵榪斿洖鐪熴佸亣鍊間綔涓哄垽鏂殑涓涓潯浠訛紝閭d箞鍙互鐢╡val鍑芥暟銆?br />
濡傦紝eval(pattern.matched(5,$line.getCurrLine()))
鍏朵腑錛宲attern鏄煇涓姞鍏ュ埌workingmemory涓殑涓涓疄渚嬨俶atched鏄繖涓疄渚嬫墍浠h〃綾葷殑涓涓柟娉曘傚畠榪斿洖boolean綾誨瀷銆?br />
(3)Drools瑙勫垯寮曟搸鐨勪嬌鐢ㄦ劅鍙?br />
鎬諱箣錛孌rools榪樻槸涓涓緢涓嶉敊鐨勫紑婧愯鍒欏紩鎿庛傜幇鍦╲4.0浠ヤ笂鐨勭増鏈凡緇忔瘮浠ュ墠鐨勭増鏈湪閫熷害涓婃湁浜嗗緢澶х殑鎻愬崌銆傚彲浠ヤ綔涓烘垜浠竴鑸簲鐢ㄧ▼搴忕郴緇熺殑涓棿浠朵駭鍝侊紙閭d簺瑙勫垯涓嶆槸寰堢粡甯告敼鍙樼殑緋葷粺錛屽凡緇忛潪嫻佺▼綾昏鍒欙級銆備絾鏄紝榪欏叾涓繕鏄渶瑕佷竴浜涢澶栫殑effort鏉ュ涔犲畠鐨勪嬌鐢ㄦ枃妗d互鍙婃暣浣撴灦鏋勶紝鏈変竴瀹氱殑瀛︿範鏇茬嚎銆?br />
鏈鍚庯紝鎴戞兂涓涓緝濂界殑瀵逛簬鎶鏈嬌鐢ㄧ殑practice灝辨槸錛氶鍏堢煡閬撳畠鑳戒負浣犲仛浠涔堬紝瀹冩渶濂界殑搴旂敤棰嗗煙錛岀劧鍚庡啀鍘繪繁鍏ャ?strong>
錛圥S:濡傛灉璋佹湁浣跨敤Drools鐨勯棶棰橈紝鍙互鑱旂郴鎴戯紒涓璧瘋璁猴紒錛?br />
璇存槑錛?/span>Jar鍖呭拰綾昏礬寰勫疄闄呬笂鏄竴涓蹇?/span>錛屾瘮濡傜被com.bbebfe.Test.class鎵撳寘涓?/span>test.jar鍖咃紝娣誨姞綾誨紩鐢ㄥ氨鐩存帴娣誨姞test.jar鍖呫傝屽鏋滄槸娣誨姞綾繪枃浠惰礬寰勶紝鍒欐坊鍔犲寘鐩綍鐨勪笂綰х洰褰曪紝姣斿lib/com/bbebfe/Test.class錛屽垯娣誨姞lib鏂囦歡澶癸紝鑰屼笉鏄?/span>com鏂囦歡澶廣傚湪姝ゅ悗鐨勪緥瀛愪腑閮藉彧璇存槑Jar鍖呯殑褰㈠紡銆?/span>
鍒嗘瀽錛?/span>Eclipse鎻掍歡寮鍙戝浜?/span>Jar鍖呯殑寮曠敤涓昏鏈変笁縐嶅師鍥狅細
1錛?/font> 鎻掍歡寮曠敤絎笁鏂瑰寘錛堟櫘閫氱殑jar鍖呮垨鑰呯被鏂囦歡錛屼笉鏄彃浠訛級銆?/span>
a) 寮鍙戠幆澧冨紩鐢ㄩ厤緗?/strong>錛屽湪prject -> properties -> Java build path涓緗?/span>
b) 榪愯鐜寮曠敤閰嶇疆錛屽湪plugin manifest緙栬緫鍣ㄧ殑Runtime閫夐」鍗′笅鐨?/span>classpath涓坊鍔?/span>tset.jar鍖呯殑寮曠敤錛堝湪MANIFEST.MF涓〃鐜頒負Bundle-ClassPath: lib/test.jar, 鍦?/span>plugin.xml琛ㄧ幇涓?/span><runtime>鑺備笅鐨勫紩鐢?/span>
i. 綾繪枃浠跺湪lib鐩綍涓嬶紝濡備笅鐨勮緗鍑?/span>lib鐩綍涓嬫墍鏈夌洰褰曪細
<runtime>
<library name="lib/">
<export name="*"/>
</library>
</runtime>
ii. test.jar鍦?/span>lib鐩綍涓嬶細
<runtime>
<library name="lib/test.jar">
<export name="*"/>
</library>
</runtime>
iii. 瀹為檯涓婁笂闈㈢殑璁劇疆鍙互綆鍖栦負錛?/span>
<runtime>
<library name="lib/"/>
</runtime>
鎴栬?/span>
<runtime>
<library name="lib/test.jar"/>
</runtime>
榛樿鍗沖鍑?/span>lib鐩綍涓嬬殑鎵鏈夊寘鍜?/span>jar涓嬬殑鎵鏈夊寘
瀹為檯涓婏紝鎵цb)欏硅緗悗錛屼細鑷姩鎵цa)欏硅緗紝浣垮紑鍙戠幆澧冨拰榪愯鐜鍚屾椂鏈夋晥銆?/span>
2錛?/font> 鎻掍歡B寮曠敤鎻掍歡宸ョ▼A錛堥潪Eclipse鎻掍歡錛岃屾槸鑷繁鍙﹀涓涓彃浠墮」鐩腑鐨勭被錛?/span>
a) 棣栧厛蹇呴』灝?/span>A涓殑B闇瑕佺殑綾繪毚闇詫紙export錛夊嚭鏉?/span>
i. 濡傛灉鏈?/span>MANIFEST.MF鏂囦歡錛屽垯琛ㄧ幇涓?/span>plugin manifest緙栬緫鍣ㄤ腑runtime鑺傜殑exported packages錛岄氳繃榪欓噷娣誨姞闇瑕?/span>export鐨勫寘銆傚湪manifest.mf鏂囦歡涓槸Export-Package: com.bbebfe
ii. 濡傛灉鍙湁plugin.xml錛屽垯琛ㄧ幇涓?/span>plugin manifest緙栬緫鍣ㄤ腑runtime鑺傜殑library visibility銆?/span>鍦?/span>plugin.xml鏂囦歡涓〃鐜頒負
<runtime>
<library>
<export name=”com.bbebfe.*”/>
...
b) 鍦?/span>B鎻掍歡宸ョ▼鐨?/span>plugin manifest緙栬緫鍣ㄤ腑鐨?/span>dependencies閫夐」鍗′腑娣誨姞瀵?/span>A鎻掍歡鐨勫紩鐢紙榪欒姹傝繍琛屽璇濇涓殑plugins鍒楄〃鐨?/span>workspace plugins涓繀欏誨寘鍚?/span>A鎻掍歡錛夈?/span>
c) 濡傛灉B宸ョ▼鏄竴涓?/span>RCP宸ョ▼錛屽垯蹇呴』鍦?/span>product緙栬緫鍣ㄧ殑configuration閫夐」鍗′腑鍖呭惈A鎻掍歡宸ョ▼銆?/span>
3錛?/font> 鎻掍歡B寮曠敤Eclipse鎻掍歡A鐨勭被銆?/span>
a) Eclipse鎻掍歡涓殑綾婚兘鏄?/span>Exported錛屽洜姝よ繖姝ョ渷鐣ャ?/span>
b) 鍦?/span>B鎻掍歡宸ョ▼鐨?/span>plugin manifest緙栬緫鍣ㄤ腑鐨?/span>dependencies閫夐」鍗′腑娣誨姞瀵?/span>A鎻掍歡鐨勫紩鐢紙榪欒姹?/span>preferences -> plugin development -> target鐩爣騫沖彴蹇呴』鍖呭惈A鎻掍歡錛屼笖榪愯瀵硅瘽妗嗙殑plugins鍒楄〃涓殑target platform涓繀欏婚変腑A鎻掍歡錛夈?/span>
鎬葷粨錛氬鏋?/span>B鎻掍歡寮曠敤鐨?/span>A涔熸槸涓涓彃浠?/span>錛屽垯A蹇呴』鍑虹幇鍦?/span>B鎻掍歡鐨?/span>plugin dependencies寮曠敤涓紝鑰屼笉鏄叾浠栧湴鏂癸紝鍚﹀垯鑲畾浼氬嚭鐜拌繍琛屾椂NoClassDefFoundError闂錛堝洜姝ゅ繀欏誨湪plugin manifest緙栬緫鍣ㄧ殑dependencies閫夐」鍗′笅榪涜璁劇疆錛夈傝屼笖鍙渶瑕佸湪榪欓噷璁劇疆鐨勮緗寮鍙戠幆澧冨拰榪愯鐜鍚屾椂鏈夋晥錛?/span>