Source Code Cross Referenced for MethodContext.java in  » ERP-CRM-Financial » SourceTap-CRM » org » ofbiz » minilang » method » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » ERP CRM Financial » SourceTap CRM » org.ofbiz.minilang.method 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * $Id: MethodContext.java,v 1.1 2003/08/17 06:06:12 ajzeneski Exp $
003:         *
004:         *  Copyright (c) 2001, 2002 The Open For Business Project - www.ofbiz.org
005:         *
006:         *  Permission is hereby granted, free of charge, to any person obtaining a
007:         *  copy of this software and associated documentation files (the "Software"),
008:         *  to deal in the Software without restriction, including without limitation
009:         *  the rights to use, copy, modify, merge, publish, distribute, sublicense,
010:         *  and/or sell copies of the Software, and to permit persons to whom the
011:         *  Software is furnished to do so, subject to the following conditions:
012:         *
013:         *  The above copyright notice and this permission notice shall be included
014:         *  in all copies or substantial portions of the Software.
015:         *
016:         *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
017:         *  OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
018:         *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
019:         *  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
020:         *  CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT
021:         *  OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
022:         *  THE USE OR OTHER DEALINGS IN THE SOFTWARE.
023:         */
024:        package org.ofbiz.minilang.method;
025:
026:        import java.util.HashMap;
027:        import java.util.Iterator;
028:        import java.util.Locale;
029:        import java.util.Map;
030:
031:        import javax.servlet.http.HttpServletRequest;
032:        import javax.servlet.http.HttpServletResponse;
033:
034:        import org.ofbiz.base.util.FlexibleMapAccessor;
035:        import org.ofbiz.base.util.FlexibleStringExpander;
036:        import org.ofbiz.base.util.UtilHttp;
037:        import org.ofbiz.entity.GenericDelegator;
038:        import org.ofbiz.entity.GenericValue;
039:        import org.ofbiz.minilang.SimpleMethod;
040:        import org.ofbiz.security.Security;
041:        import org.ofbiz.service.DispatchContext;
042:        import org.ofbiz.service.LocalDispatcher;
043:
044:        /**
045:         * A single operation, does the specified operation on the given field
046:         *
047:         * @author     <a href="mailto:jonesde@ofbiz.org">David E. Jones</a>
048:         * @author     <a href="mailto:jaz@ofbiz.org">Andy Zeneski</a> 
049:         * @version    $Revision: 1.1 $
050:         * @since      2.0
051:         */
052:        public class MethodContext {
053:
054:            public static final int EVENT = 1;
055:            public static final int SERVICE = 2;
056:
057:            protected int methodType;
058:
059:            protected Map env = new HashMap();
060:            protected Map parameters;
061:            protected Locale locale;
062:            protected ClassLoader loader;
063:            protected LocalDispatcher dispatcher;
064:            protected GenericDelegator delegator;
065:            protected Security security;
066:            protected GenericValue userLogin;
067:
068:            protected HttpServletRequest request = null;
069:            protected HttpServletResponse response = null;
070:
071:            protected Map results = null;
072:            protected DispatchContext ctx;
073:
074:            public MethodContext(HttpServletRequest request,
075:                    HttpServletResponse response, ClassLoader loader) {
076:                this .methodType = MethodContext.EVENT;
077:                this .parameters = UtilHttp.getParameterMap(request);
078:                this .loader = loader;
079:                this .request = request;
080:                this .response = response;
081:                this .locale = UtilHttp.getLocale(request);
082:                this .dispatcher = (LocalDispatcher) request
083:                        .getAttribute("dispatcher");
084:                this .delegator = (GenericDelegator) request
085:                        .getAttribute("delegator");
086:                this .security = (Security) request.getAttribute("security");
087:                this .userLogin = (GenericValue) request.getSession()
088:                        .getAttribute("userLogin");
089:
090:                if (this .loader == null) {
091:                    try {
092:                        this .loader = Thread.currentThread()
093:                                .getContextClassLoader();
094:                    } catch (SecurityException e) {
095:                        this .loader = this .getClass().getClassLoader();
096:                    }
097:                }
098:            }
099:
100:            public MethodContext(DispatchContext ctx, Map context,
101:                    ClassLoader loader) {
102:                this .methodType = MethodContext.SERVICE;
103:                this .parameters = context;
104:                this .loader = loader;
105:                this .locale = (Locale) context.get("locale");
106:                this .dispatcher = ctx.getDispatcher();
107:                this .delegator = ctx.getDelegator();
108:                this .security = ctx.getSecurity();
109:                this .results = new HashMap();
110:                this .userLogin = (GenericValue) context.get("userLogin");
111:
112:                if (this .loader == null) {
113:                    try {
114:                        this .loader = Thread.currentThread()
115:                                .getContextClassLoader();
116:                    } catch (SecurityException e) {
117:                        this .loader = this .getClass().getClassLoader();
118:                    }
119:                }
120:            }
121:
122:            /**
123:             * This is a very simple constructor which assumes the needed objects (dispatcher, 
124:             * delegator, security, request, response, etc) are in the context. 
125:             * Will result in calling method as a service or event, as specified.
126:             */
127:            public MethodContext(Map context, ClassLoader loader, int methodType) {
128:                this .methodType = methodType;
129:                this .parameters = context;
130:                this .loader = loader;
131:                this .locale = (Locale) context.get("locale");
132:                this .dispatcher = (LocalDispatcher) context.get("dispatcher");
133:                this .delegator = (GenericDelegator) context.get("delegator");
134:                this .security = (Security) context.get("security");
135:                this .userLogin = (GenericValue) context.get("userLogin");
136:
137:                if (methodType == MethodContext.EVENT) {
138:                    this .request = (HttpServletRequest) context.get("request");
139:                    this .response = (HttpServletResponse) context
140:                            .get("response");
141:                    if (this .locale == null)
142:                        this .locale = UtilHttp.getLocale(request);
143:
144:                    //make sure the delegator and other objects are in place, getting from 
145:                    // request if necessary; assumes this came through the ControlServlet
146:                    // or something similar
147:                    if (this .request != null) {
148:                        if (this .dispatcher == null)
149:                            this .dispatcher = (LocalDispatcher) this .request
150:                                    .getAttribute("dispatcher");
151:                        if (this .delegator == null)
152:                            this .delegator = (GenericDelegator) this .request
153:                                    .getAttribute("delegator");
154:                        if (this .security == null)
155:                            this .security = (Security) this .request
156:                                    .getAttribute("security");
157:                        if (this .userLogin == null)
158:                            this .userLogin = (GenericValue) this .request
159:                                    .getSession().getAttribute("userLogin");
160:                    }
161:                } else if (methodType == MethodContext.SERVICE) {
162:                    this .results = new HashMap();
163:                }
164:
165:                if (this .loader == null) {
166:                    try {
167:                        this .loader = Thread.currentThread()
168:                                .getContextClassLoader();
169:                    } catch (SecurityException e) {
170:                        this .loader = this .getClass().getClassLoader();
171:                    }
172:                }
173:            }
174:
175:            public void setErrorReturn(String errMsg, SimpleMethod simpleMethod) {
176:                if (getMethodType() == MethodContext.EVENT) {
177:                    putEnv(simpleMethod.getEventErrorMessageName(), errMsg);
178:                    putEnv(simpleMethod.getEventResponseCodeName(),
179:                            simpleMethod.getDefaultErrorCode());
180:                } else if (getMethodType() == MethodContext.SERVICE) {
181:                    putEnv(simpleMethod.getServiceErrorMessageName(), errMsg);
182:                    putEnv(simpleMethod.getServiceResponseMessageName(),
183:                            simpleMethod.getDefaultErrorCode());
184:                }
185:            }
186:
187:            public int getMethodType() {
188:                return this .methodType;
189:            }
190:
191:            public Map getEnvMap() {
192:                return this .env;
193:            }
194:
195:            /** Gets the named value from the environment. Supports the "." (dot) syntax to access Map members and the
196:             * "[]" (bracket) syntax to access List entries. This value is expanded, supporting the insertion of other 
197:             * environment values using the "${}" notation.
198:             * 
199:             * @param key The name of the environment value to get. Can contain "." and "[]" syntax elements as described above.
200:             * @return The environment value if found, otherwise null. 
201:             */
202:            public Object getEnv(String key) {
203:                String ekey = this .expandString(key);
204:                FlexibleMapAccessor fma = new FlexibleMapAccessor(ekey);
205:                return this .getEnv(fma);
206:            }
207:
208:            public Object getEnv(FlexibleMapAccessor fma) {
209:                return fma.get(this .env);
210:            }
211:
212:            /** Puts the named value in the environment. Supports the "." (dot) syntax to access Map members and the
213:             * "[]" (bracket) syntax to access List entries. 
214:             * If the brackets for a list are empty the value will be appended to end of the list,
215:             * otherwise the value will be set in the position of the number in the brackets.
216:             * If a "+" (plus sign) is included inside the square brackets before the index 
217:             * number the value will inserted/added at that index instead of set at that index.
218:             * This value is expanded, supporting the insertion of other 
219:             * environment values using the "${}" notation.
220:             * 
221:             * @param key The name of the environment value to get. Can contain "." syntax elements as described above.
222:             * @param value The value to set in the named environment location.
223:             */
224:            public void putEnv(String key, Object value) {
225:                String ekey = this .expandString(key);
226:                FlexibleMapAccessor fma = new FlexibleMapAccessor(ekey);
227:                this .putEnv(fma, value);
228:            }
229:
230:            public void putEnv(FlexibleMapAccessor fma, Object value) {
231:                fma.put(this .env, value);
232:            }
233:
234:            /** Calls putEnv for each entry in the Map, thus allowing for the additional flexibility in naming 
235:             * supported in that method. 
236:             */
237:            public void putAllEnv(Map values) {
238:                Iterator viter = values.entrySet().iterator();
239:                while (viter.hasNext()) {
240:                    Map.Entry entry = (Map.Entry) viter.next();
241:                    this .putEnv((String) entry.getKey(), entry.getValue());
242:                }
243:            }
244:
245:            /** Removes the named value from the environment. Supports the "." (dot) syntax to access Map members and the
246:             * "[]" (bracket) syntax to access List entries. This value is expanded, supporting the insertion of other 
247:             * environment values using the "${}" notation.
248:             * 
249:             * @param key The name of the environment value to get. Can contain "." syntax elements as described above.
250:             */
251:            public Object removeEnv(String key) {
252:                String ekey = this .expandString(key);
253:                FlexibleMapAccessor fma = new FlexibleMapAccessor(ekey);
254:                return this .removeEnv(fma);
255:            }
256:
257:            public Object removeEnv(FlexibleMapAccessor fma) {
258:                return fma.remove(this .env);
259:            }
260:
261:            public Iterator getEnvEntryIterator() {
262:                return this .env.entrySet().iterator();
263:            }
264:
265:            public Object getParameter(String key) {
266:                return this .parameters.get(key);
267:            }
268:
269:            public void putParameter(String key, Object value) {
270:                this .parameters.put(key, value);
271:            }
272:
273:            public Map getParameters() {
274:                return this .parameters;
275:            }
276:
277:            public ClassLoader getLoader() {
278:                return this .loader;
279:            }
280:
281:            public Locale getLocale() {
282:                return this .locale;
283:            }
284:
285:            public LocalDispatcher getDispatcher() {
286:                return this .dispatcher;
287:            }
288:
289:            public GenericDelegator getDelegator() {
290:                return this .delegator;
291:            }
292:
293:            public Security getSecurity() {
294:                return this .security;
295:            }
296:
297:            public HttpServletRequest getRequest() {
298:                return this .request;
299:            }
300:
301:            public HttpServletResponse getResponse() {
302:                return this .response;
303:            }
304:
305:            public GenericValue getUserLogin() {
306:                return this .userLogin;
307:            }
308:
309:            public void setUserLogin(GenericValue userLogin,
310:                    String userLoginEnvName) {
311:                this .userLogin = userLogin;
312:                this .putEnv(userLoginEnvName, userLogin);
313:            }
314:
315:            public Object getResult(String key) {
316:                return this .results.get(key);
317:            }
318:
319:            public void putResult(String key, Object value) {
320:                this .results.put(key, value);
321:            }
322:
323:            public Map getResults() {
324:                return this .results;
325:            }
326:
327:            /** Expands environment variables delimited with ${} */
328:            public String expandString(String original) {
329:                return FlexibleStringExpander.expandString(original, this.env);
330:            }
331:        }
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