Source Code Cross Referenced for DefaultIWrapperState.java in  » J2EE » Pustefix » de » schlund » pfixcore » workflow » app » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » J2EE » Pustefix » de.schlund.pfixcore.workflow.app 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * This file is part of PFIXCORE.
003:         *
004:         * PFIXCORE is free software; you can redistribute it and/or modify
005:         * it under the terms of the GNU Lesser General Public License as published by
006:         * the Free Software Foundation; either version 2 of the License, or
007:         * (at your option) any later version.
008:         *
009:         * PFIXCORE is distributed in the hope that it will be useful,
010:         * but WITHOUT ANY WARRANTY; without even the implied warranty of
011:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
012:         * GNU Lesser General Public License for more details.
013:         *
014:         * You should have received a copy of the GNU Lesser General Public License
015:         * along with PFIXCORE; if not, write to the Free Software
016:         * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
017:         *
018:         */
019:
020:        package de.schlund.pfixcore.workflow.app;
021:
022:        import de.schlund.pfixcore.util.TokenManager;
023:        import de.schlund.pfixcore.workflow.Context;
024:        import de.schlund.pfixcore.workflow.StateImpl;
025:        import de.schlund.pfixxml.PfixServletRequest;
026:        import de.schlund.pfixxml.PropertyObjectManager;
027:        import de.schlund.pfixxml.RequestParam;
028:        import de.schlund.pfixxml.ResultDocument;
029:        import de.schlund.pfixxml.XMLException;
030:        import de.schlund.pfixxml.config.PageRequestConfig;
031:        import de.schlund.pfixxml.perflogging.PerfEvent;
032:        import de.schlund.pfixxml.perflogging.PerfEventType;
033:        import de.schlund.util.statuscodes.StatusCodeLib;
034:
035:        /**
036:         * DefaultIWrapperState.java
037:         * 
038:         * 
039:         * Created: Wed Oct 10 10:31:49 2001
040:         * 
041:         * @author <a href="mailto:jtl@schlund.de">Jens Lautenbacher</a>
042:         */
043:
044:        public class DefaultIWrapperState extends StateImpl {
045:
046:            public final static String DEF_WRP_CONTAINER = "de.schlund.pfixcore.workflow.app.IWrapperSimpleContainer";
047:            private final static String DEF_FINALIZER = "de.schlund.pfixcore.workflow.app.ResdocSimpleFinalizer";
048:            public final static String PROP_CONTAINER = "defaultiwrapperstate.iwrappercontainer";
049:            private final static String IHDL_CONT_MANAGER = "de.schlund.pfixcore.workflow.app.IHandlerContainerManager";
050:
051:            /**
052:             * @see de.schlund.pfixcore.workflow.State#isAccessible(Context,
053:             *      PfixServletRequest)
054:             */
055:            @Override
056:            public boolean isAccessible(Context context, PfixServletRequest preq)
057:                    throws Exception {
058:                IHandlerContainer container = getIHandlerContainer(context);
059:                return (container.isPageAccessible(context) && container
060:                        .areHandlerActive(context));
061:            }
062:
063:            /**
064:             * @see de.schlund.pfixcore.workflow.State#needsData(Context,
065:             *      PfixServletRequest)
066:             */
067:            @Override
068:            public boolean needsData(Context context, PfixServletRequest preq)
069:                    throws Exception {
070:                CAT.debug(">>> [" + context.getCurrentPageRequest().getName()
071:                        + "] Checking needsData()...");
072:                // IWrapperContainer container = getIWrapperContainer(context);
073:                // container.initIWrappers(context, preq, new ResultDocument());
074:                // boolean retval = container.needsData();
075:                IHandlerContainer container = getIHandlerContainer(context);
076:                boolean retval = container.needsData(context);
077:
078:                if (retval) {
079:                    CAT
080:                            .debug("    TRUE! now going to retrieve the current status.");
081:                } else {
082:                    CAT.debug("    FALSE! continue with pageflow check.");
083:                }
084:                return retval;
085:            }
086:
087:            /**
088:             * @see de.schlund.pfixcore.workflow.State#getDocument(Context,
089:             *      PfixServletRequest)
090:             */
091:            @Override
092:            @SuppressWarnings("deprecation")
093:            public ResultDocument getDocument(Context context,
094:                    PfixServletRequest preq) throws Exception {
095:                IWrapperContainer container = getIWrapperContainer(context);
096:                ResdocFinalizer rfinal = getResdocFinalizer(context);
097:                ResultDocument resdoc = new ResultDocument();
098:
099:                CAT.debug("[[[[[ " + context.getCurrentPageRequest().getName()
100:                        + " ]]]]]");
101:
102:                PerfEvent pe = new PerfEvent(PerfEventType.PAGE_INITIWRAPPERS,
103:                        context.getCurrentPageRequest().toString());
104:
105:                pe.start();
106:                container.initIWrappers(context, preq, resdoc);
107:                pe.save();
108:
109:                if (isSubmitTrigger(context, preq)) {
110:                    CAT.debug(">>> In SubmitHandling...");
111:
112:                    boolean valid = true;
113:                    RequestParam rp = preq.getRequestParam("__token");
114:                    if (rp != null) {
115:                        String token = rp.getValue();
116:                        String[] tokenParts = token.split(":");
117:                        if (tokenParts.length == 3) {
118:                            String tokenName = tokenParts[0];
119:                            String errorPage = tokenParts[1];
120:                            String tokenValue = tokenParts[2];
121:                            TokenManager tm = (TokenManager) context;
122:                            if (tm.isValidToken(tokenName, tokenValue)) {
123:                                tm.invalidateToken(tokenName);
124:                            } else {
125:                                context
126:                                        .addPageMessage(StatusCodeLib.PFIXCORE_GENERATOR_FORM_TOKEN_INVALID);
127:                                if (errorPage.equals("")) {
128:                                    pe = new PerfEvent(
129:                                            PerfEventType.PAGE_RETRIEVECURRENTSTATUS,
130:                                            context.getCurrentPageRequest()
131:                                                    .toString());
132:                                    pe.start();
133:                                    container.retrieveCurrentStatus();
134:                                    pe.save();
135:                                    rfinal.onRetrieveStatus(container);
136:                                    context.prohibitContinue();
137:                                } else {
138:                                    context.setJumpToPage(errorPage);
139:                                }
140:                                valid = false;
141:                            }
142:                        } else {
143:                            throw new IllegalArgumentException(
144:                                    "Invalid token format: " + token);
145:                        }
146:                    } else {
147:                        PageRequestConfig pageConf = context
148:                                .getConfigForCurrentPageRequest();
149:                        if (pageConf != null && pageConf.requiresToken()) {
150:                            context
151:                                    .addPageMessage(StatusCodeLib.PFIXCORE_GENERATOR_FORM_TOKEN_MISSING);
152:                            pe = new PerfEvent(
153:                                    PerfEventType.PAGE_RETRIEVECURRENTSTATUS,
154:                                    context.getCurrentPageRequest().toString());
155:                            pe.start();
156:                            container.retrieveCurrentStatus();
157:                            pe.save();
158:                            rfinal.onRetrieveStatus(container);
159:                            context.prohibitContinue();
160:                            valid = false;
161:                        }
162:                    }
163:
164:                    if (valid) {
165:                        pe = new PerfEvent(
166:                                PerfEventType.PAGE_HANDLESUBMITTEDDATA, context
167:                                        .getCurrentPageRequest().toString());
168:                        pe.start();
169:                        container.handleSubmittedData();
170:                        pe.save();
171:
172:                        if (container.errorHappened()) {
173:                            CAT
174:                                    .debug("    => Can't continue, as errors happened during load/work.");
175:                            rfinal.onWorkError(container);
176:                            context.prohibitContinue();
177:                        } else {
178:                            CAT
179:                                    .debug("    => No error happened during work ...");
180:                            if (container.getClass().getName().equals(
181:                                    DEF_WRP_CONTAINER)) {
182:                                // TODO: REMOVE THIS whole "if" branch we're in completely once we don't have to support the old behavior anymore
183:                                if (!context.isJumpToPageSet()
184:                                        && ((IWrapperSimpleContainer) container)
185:                                                .stayAfterSubmit()) {
186:                                    CAT
187:                                            .debug("... Container says he wants to stay on this page and no jumptopage is set: Setting prohibitcontinue=true");
188:                                    context.prohibitContinue();
189:                                } else {
190:                                    CAT
191:                                            .debug("... Container says he is ready.");
192:                                }
193:                            }
194:
195:                            CAT
196:                                    .debug("    => end of submit reached successfully.");
197:                            CAT.debug("    => retrieving current status.");
198:                            pe = new PerfEvent(
199:                                    PerfEventType.PAGE_RETRIEVECURRENTSTATUS,
200:                                    context.getCurrentPageRequest().toString());
201:                            pe.start();
202:                            container.retrieveCurrentStatus();
203:                            pe.save();
204:
205:                            rfinal.onSuccess(container);
206:                        }
207:                    }
208:                } else if (isDirectTrigger(context, preq)
209:                        || context.finalPageIsRunning()
210:                        || context.flowIsRunning()) {
211:                    CAT.debug(">>> Retrieving current status...");
212:
213:                    pe = new PerfEvent(
214:                            PerfEventType.PAGE_RETRIEVECURRENTSTATUS, context
215:                                    .getCurrentPageRequest().toString());
216:                    pe.start();
217:                    container.retrieveCurrentStatus();
218:                    pe.save();
219:                    if (CAT.isDebugEnabled()) {
220:                        if (isDirectTrigger(context, preq)) {
221:                            CAT.debug("    => REASON: DirectTrigger");
222:                        } else if (context.finalPageIsRunning()) {
223:                            CAT.debug("    => REASON: FinalPage");
224:                        } else {
225:                            CAT.debug("    => REASON: WorkFlow");
226:                        }
227:                    }
228:                    rfinal.onRetrieveStatus(container);
229:                    context.prohibitContinue();
230:                } else {
231:                    throw new XMLException(
232:                            "This should not happen: No submit trigger, no direct trigger, no final page and no workflow???");
233:                }
234:
235:                // We want to optimize away the case where the context tells us that we
236:                // don't need to supply a full document as the context will - because of
237:                // the current state of
238:                // the context itself - not use the returned document for displaying the
239:                // page or any
240:                // further processing anyway. The context is responsible to only return
241:                // false when it can be 100% sure that the
242:                // document is not needed. Most notably this is NOT the case whenever
243:                // the current flow step has
244:                // pageflow actions attached, because those can possibly call
245:                // prohibitContinue() which in turn would force
246:                // the context to display the current page.
247:                // See the implementation of Context.stateMustSupplyFullDocument() for
248:                // details.
249:                if (context.stateMustSupplyFullDocument()) {
250:                    container.addStringValues();
251:                    container.addErrorCodes();
252:
253:                    container.addIWrapperStatus();
254:                    renderContextResources(context, resdoc);
255:                    addResponseHeadersAndType(context, resdoc);
256:                }
257:                return resdoc;
258:            }
259:
260:            // Eeek, unfortunately we can't use a flyweight here... (somewhere we need
261:            // to store state after all)
262:            protected IWrapperContainer getIWrapperContainer(Context context)
263:                    throws XMLException {
264:                IWrapperContainer obj = null;
265:
266:                String classname = context.getContextConfig().getProperties()
267:                        .getProperty(PROP_CONTAINER);
268:
269:                if (classname == null) {
270:                    classname = DEF_WRP_CONTAINER;
271:                }
272:
273:                try {
274:                    obj = (IWrapperContainer) Class.forName(classname)
275:                            .newInstance();
276:                } catch (InstantiationException e) {
277:                    throw new XMLException("unable to instantiate class ["
278:                            + classname + "] :" + e.getMessage());
279:                } catch (IllegalAccessException e) {
280:                    throw new XMLException("unable access class [" + classname
281:                            + "] :" + e.getMessage());
282:                } catch (ClassNotFoundException e) {
283:                    throw new XMLException("unable to find class [" + classname
284:                            + "] :" + e.getMessage());
285:                } catch (ClassCastException e) {
286:                    throw new XMLException(
287:                            "class ["
288:                                    + classname
289:                                    + "] does not implement the interface IWrapperContainer :"
290:                                    + e.getMessage());
291:                }
292:
293:                return obj;
294:            }
295:
296:            // Remember, a ResdocFinalizer is a flyweight!!!
297:            protected ResdocFinalizer getResdocFinalizer(Context context)
298:                    throws XMLException {
299:                PageRequestConfig config = context
300:                        .getConfigForCurrentPageRequest();
301:                Class<? extends ResdocFinalizer> clazz = config.getFinalizer();
302:                String classname = DEF_FINALIZER;
303:                if (clazz != null) {
304:                    classname = clazz.getName();
305:                }
306:
307:                ResdocFinalizer fin = ResdocFinalizerFactory.getInstance()
308:                        .getResdocFinalizer(classname);
309:
310:                if (fin == null) {
311:                    throw new RuntimeException(
312:                            "No finalizer found: classname = " + classname);
313:                }
314:
315:                return fin;
316:            }
317:
318:            // Remember, a IHandlerContainer is a flyweight!!!
319:            protected IHandlerContainer getIHandlerContainer(Context context)
320:                    throws Exception {
321:                // Use context config object as dummy configuration object to make sure
322:                // each context (server) has its own IHandlerContainerManager
323:                IHandlerContainerManager ihcm = (IHandlerContainerManager) PropertyObjectManager
324:                        .getInstance().getConfigurableObject(
325:                                context.getContextConfig(), IHDL_CONT_MANAGER);
326:                return ihcm.getIHandlerContainer(context);
327:            }
328:
329:        }// DefaultIWrapperState
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