Source Code Cross Referenced for LDMXMLComponentPlugin.java in  » Science » Cougaar12_4 » org » cougaar » mlm » plugin » ldm » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Science » Cougaar12_4 » org.cougaar.mlm.plugin.ldm 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * <copyright>
003:         *  
004:         *  Copyright 1997-2004 BBNT Solutions, LLC
005:         *  under sponsorship of the Defense Advanced Research Projects
006:         *  Agency (DARPA).
007:         * 
008:         *  You can redistribute this software and/or modify it under the
009:         *  terms of the Cougaar Open Source License as published on the
010:         *  Cougaar Open Source Website (www.cougaar.org).
011:         * 
012:         *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
013:         *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
014:         *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
015:         *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
016:         *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
017:         *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
018:         *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
019:         *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
020:         *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
021:         *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
022:         *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
023:         *  
024:         * </copyright>
025:         */
026:
027:        package org.cougaar.mlm.plugin.ldm;
028:
029:        import java.io.File;
030:        import java.lang.reflect.Method;
031:        import java.text.DateFormat;
032:        import java.util.Collection;
033:        import java.util.Date;
034:        import java.util.Enumeration;
035:        import java.util.Properties;
036:        import java.util.Vector;
037:
038:        import org.cougaar.core.blackboard.SubscriberException;
039:        import org.cougaar.core.component.ServiceRevokedEvent;
040:        import org.cougaar.core.component.ServiceRevokedListener;
041:        import org.cougaar.core.domain.FactoryException;
042:        import org.cougaar.core.plugin.ComponentPlugin;
043:        import org.cougaar.core.service.DomainService;
044:        import org.cougaar.planning.ldm.PlanningFactory;
045:        import org.cougaar.planning.ldm.PropertyProvider;
046:        import org.cougaar.planning.ldm.PrototypeProvider;
047:        import org.cougaar.planning.ldm.asset.Asset;
048:        import org.cougaar.planning.ldm.asset.NewPropertyGroup;
049:        import org.cougaar.planning.ldm.asset.PropertyGroup;
050:        import org.cougaar.planning.ldm.plan.NewRoleSchedule;
051:        import org.cougaar.planning.ldm.plan.Schedule;
052:        import org.cougaar.planning.service.PrototypeRegistryService;
053:        import org.w3c.dom.Document;
054:        import org.w3c.dom.Element;
055:        import org.w3c.dom.Node;
056:        import org.w3c.dom.NodeList;
057:
058:        /**
059:         * An instance of an LDMPlugin that reads a Cluster's startup data
060:         * from an XML file (of the form *.ldm.xml).
061:         *
062:         * This Plugin is invoked with one parameter, the name of the
063:         * .ldm.xml file to be parsed.  This file is currently looked for 
064:         * in the local directory.  Additional file search capabilities will
065:         * be added.  Example from a sample cluster.ini file:
066:         * <PRE>
067:         * plugin=org.cougaar.mlm.plugin.sql.LDMXMLPlugin( foo.ldm.xml )
068:         * </PRE>
069:         *
070:         * @deprecated Try toolkit module's org.cougaar.lib.plugin.UTILLdmXMLPlugin, or XMLPrototypeProviderPlugin in this package
071:         *
072:         */
073:        public class LDMXMLComponentPlugin extends ComponentPlugin implements 
074:                PropertyProvider, PrototypeProvider {
075:
076:            private Properties globalParameters = new Properties();
077:            private String xmlfilename;
078:            private Enumeration assets;
079:            //private XmlDocument doc;
080:            private Document doc;
081:            private PlanningFactory ldmf;
082:            private DomainService domainService = null;
083:            private PrototypeRegistryService protoRegistryService = null;
084:
085:            //private AssetFactory theAssetFactory = new AssetFactory();
086:
087:            public LDMXMLComponentPlugin() {
088:            }
089:
090:            protected void setupSubscriptions() {
091:                if (getBlackboardService().didRehydrate())
092:                    return; // Assets already added after rehydration
093:
094:                domainService = (DomainService) getServiceBroker().getService(
095:                        this , DomainService.class,
096:                        new ServiceRevokedListener() {
097:                            public void serviceRevoked(ServiceRevokedEvent re) {
098:                                if (DomainService.class.equals(re.getService()))
099:                                    domainService = null;
100:                            }
101:                        });
102:
103:                ldmf = ((PlanningFactory) domainService.getFactory("planning"));
104:                try {
105:                    getParams();
106:                    parseXMLFile();
107:                } catch (SubscriberException se) {
108:                    se.printStackTrace();
109:                }
110:            }
111:
112:            /** 
113:             * Do nothing
114:             */
115:            public void execute() {
116:            }
117:
118:            /**
119:             * Parse parameters passed to Plugin
120:             */
121:            private void getParams() {
122:                Collection pc = getParameters();
123:                Vector pv = new Vector(pc);
124:                if (pv == null) {
125:                    throw new RuntimeException(
126:                            "LDMXMLPlugin requires a parameter");
127:                } else {
128:                    try {
129:                        Enumeration ps = pv.elements();
130:                        String p = (String) ps.nextElement();
131:                        globalParameters.put("XMLFile", p);
132:                        xmlfilename = p;
133:                    } catch (Exception e) {
134:                        e.printStackTrace();
135:                    }
136:                }
137:            }
138:
139:            private void parseXMLFile() {
140:                try {
141:                    doc = getConfigFinder().parseXMLConfigFile(xmlfilename);
142:                    assets = getAssets(doc);
143:                    while (assets.hasMoreElements()) {
144:                        Asset asset = (Asset) assets.nextElement();
145:                        getBlackboardService().publishAdd(asset);
146:                    }
147:                } catch (Exception e) {
148:                    e.printStackTrace();
149:                }
150:            }
151:
152:            Enumeration getAssets(Document doc) {
153:                Node root = doc.getDocumentElement();
154:                if (root.getNodeName().equals("clusterassets")) {
155:                    //NodeList nlist = root.getChildNodes();
156:                    //int nlength = nlist.getLength();
157:
158:                    // The following call registers all protoypes
159:                    // found in our document, and returns to us
160:                    // all the instances found in the document.
161:                    //XMLAssetCreator xac = new XMLAssetCreator( this, getCluster() );
162:                    assets = getLDMAssets(doc);
163:                } else {
164:                    throw new RuntimeException("unrecognized field: "
165:                            + root.getNodeName());
166:                }
167:                return assets;
168:            }
169:
170:            public Asset getPrototype(String atypename, Class hint) {
171:                return null;
172:            }
173:
174:            public Asset getPrototype(String atypename) {
175:                return null;
176:            }
177:
178:            public Asset getAssetPrototype(String typeid) {
179:                protoRegistryService = (PrototypeRegistryService) getServiceBroker()
180:                        .getService(this , PrototypeRegistryService.class,
181:                                new ServiceRevokedListener() {
182:                                    public void serviceRevoked(
183:                                            ServiceRevokedEvent re) {
184:                                        if (PrototypeRegistryService.class
185:                                                .equals(re.getService()))
186:                                            protoRegistryService = null;
187:                                    }
188:                                });
189:
190:                Asset proto = protoRegistryService.getPrototype(typeid);
191:                if (proto == null) {
192:                    NodeList nlist = doc.getDocumentElement()
193:                            .getElementsByTagName("prototype");
194:                    Element node = findPrototype(typeid, nlist);
195:                    String assetClass = getAssetClass(node);
196:                    proto = ldmf.createPrototype(assetClass, typeid);
197:
198:                    protoRegistryService.fillProperties(proto);
199:                    //getOtherProperties( proto, node );
200:                    protoRegistryService.cachePrototype(typeid, proto);
201:                }
202:                return proto;
203:            }
204:
205:            private Element findPrototype(String typeid, NodeList nlist) {
206:                int size = nlist.getLength();
207:                for (int i = 0; i < size; i++) {
208:                    Element child = (Element) nlist.item(i);
209:                    if (child.getAttribute("name").equals(typeid))
210:                        return child;
211:                }
212:                return null;
213:            }
214:
215:            private String getAssetClass(Element node) {
216:                NodeList nl = node.getElementsByTagName("object");
217:                int size = nl.getLength();
218:                for (int i = 0; i < size; i++) {
219:                    Element child = (Element) nl.item(i);
220:                    return child.getAttribute("class");
221:                }
222:                return null;
223:            }
224:
225:            private void getOtherProperties(Asset asset, Element node) {
226:                NodeList nl = node.getElementsByTagName("property");
227:                int size = nl.getLength();
228:                for (int i = 0; i < size; i++) {
229:                    NewPropertyGroup prop = createPG(((Element) nl.item(i))
230:                            .getAttribute("class"));
231:                    populateProperty(prop, (Element) nl.item(i));
232:                    asset.setPropertyGroup(prop);
233:                }
234:            }
235:
236:            private void populateProperty(PropertyGroup prop, Element node) {
237:                try {
238:                    NodeList props = node.getElementsByTagName("field");
239:                    int props_size = props.getLength();
240:                    for (int i = 0; i < props_size; i++) {
241:                        Element child = (Element) props.item(i);
242:                        String methodName = new String("set"
243:                                + child.getAttribute("name"));
244:                        Class[] method_args = new Class[1];
245:                        String type = child.getAttribute("type");
246:                        method_args[0] = resolveClass(type);
247:                        Object[] setter_args = new Object[1];
248:                        setter_args[0] = resolveArgument(method_args[0], child
249:                                .getAttribute("value"));
250:                        Class propclass = prop.getClass();
251:                        Method propmethod = propclass.getMethod(methodName,
252:                                method_args);
253:                        propmethod.invoke(prop, setter_args);
254:                    }
255:                } catch (Exception e) {
256:                    e.printStackTrace();
257:                }
258:            }
259:
260:            /**
261:             * Convert a string value to an object of the type specified.
262:             */
263:            private Object resolveArgument(Class type, String value)
264:                    throws ClassNotFoundException {
265:                if (type == java.lang.Boolean.TYPE)
266:                    return new java.lang.Boolean(value);
267:                else if (type == java.lang.Character.TYPE)
268:                    return new java.lang.Character(value.charAt(0));
269:                else if (type == java.lang.Byte.TYPE)
270:                    return new java.lang.Byte(value);
271:                else if (type == java.lang.Short.TYPE)
272:                    return new java.lang.Short(value);
273:                else if (type == java.lang.Integer.TYPE)
274:                    return new java.lang.Integer(value);
275:                else if (type == java.lang.Long.TYPE)
276:                    return new java.lang.Long(value);
277:                else if (type == java.lang.Float.TYPE)
278:                    return new java.lang.Float(value);
279:                else if (type == java.lang.Double.TYPE)
280:                    return new java.lang.Double(value);
281:                else if (type == java.lang.Void.TYPE)
282:                    return null;
283:                else
284:                    return value;
285:            }
286:
287:            /**
288:             * Return a class object for the string classname provided.
289:             * Will resolve primitives to their "Class" types.
290:             */
291:            private Class resolveClass(String type)
292:                    throws ClassNotFoundException {
293:                if (type.equals("boolean"))
294:                    return java.lang.Boolean.TYPE;
295:                else if (type.equals("char"))
296:                    return java.lang.Character.TYPE;
297:                else if (type.equals("byte"))
298:                    return java.lang.Byte.TYPE;
299:                else if (type.equals("short"))
300:                    return java.lang.Short.TYPE;
301:                else if (type.equals("int"))
302:                    return java.lang.Integer.TYPE;
303:                else if (type.equals("long"))
304:                    return java.lang.Long.TYPE;
305:                else if (type.equals("float"))
306:                    return java.lang.Float.TYPE;
307:                else if (type.equals("double"))
308:                    return java.lang.Double.TYPE;
309:                else if (type.equals("void"))
310:                    return java.lang.Void.TYPE;
311:                else
312:                    return Class.forName(type);
313:            }
314:
315:            public void fillProperties(Asset asset) {
316:            }
317:
318:            private Enumeration getLDMAssets(Document doc) {
319:                PlanningFactory ldmf = ((PlanningFactory) domainService
320:                        .getFactory("planning"));
321:                Vector assets = new Vector();
322:
323:                NodeList prototypes = doc.getElementsByTagName("prototype");
324:                int proto_size = prototypes.getLength();
325:                for (int i = 0; i < proto_size; i++) {
326:                    Node child = prototypes.item(i);
327:                    Asset prototype = getAssetPrototype(child.getAttributes()
328:                            .getNamedItem("name").getNodeValue());
329:                }
330:
331:                NodeList instances = doc.getElementsByTagName("instance");
332:                int inst_size = instances.getLength();
333:                for (int j = 0; j < inst_size; j++) {
334:                    Node child = instances.item(j);
335:                    NodeList schedules = ((Element) child)
336:                            .getElementsByTagName("schedule");
337:                    // Really only expecting one Schedule here, but...
338:                    int sched_size = schedules.getLength();
339:                    Schedule sched = null;
340:                    for (int k = 0; k < sched_size; k++) {
341:                        try {
342:                            Node scheduleNode = schedules.item(k);
343:                            DateFormat df = DateFormat
344:                                    .getDateInstance(DateFormat.SHORT);
345:                            Date start = df.parse(scheduleNode.getAttributes()
346:                                    .getNamedItem("start").getNodeValue());
347:                            Date end = df.parse(scheduleNode.getAttributes()
348:                                    .getNamedItem("end").getNodeValue());
349:                            sched = ldmf.newSimpleSchedule(start, end);
350:                        } catch (Exception e) {
351:                            e.printStackTrace();
352:                        }
353:                    }
354:                    String nomen = child.getAttributes().getNamedItem("id")
355:                            .getNodeValue();
356:                    String protoname = child.getAttributes().getNamedItem(
357:                            "prototype").getNodeValue();
358:                    Asset myAsset = ldmf.createInstance(protoname, nomen);
359:                    ((NewRoleSchedule) myAsset.getRoleSchedule())
360:                            .setAvailableSchedule(sched);
361:                    assets.addElement(myAsset);
362:                }
363:                return assets.elements();
364:            }
365:
366:            private NewPropertyGroup createPG(String propname) {
367:                NewPropertyGroup tmp_prop = null;
368:                try {
369:                    tmp_prop = (NewPropertyGroup) ldmf
370:                            .createPropertyGroup(propname);
371:                } catch (FactoryException fe) {
372:                    try {
373:                        tmp_prop = (NewPropertyGroup) ldmf
374:                                .createPropertyGroup(Class.forName(propname));
375:                    } catch (ClassNotFoundException cnf) {
376:                        cnf.printStackTrace();
377:                    }
378:                }
379:                return tmp_prop;
380:            }
381:
382:        }
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