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1
17
18 package org.pentaho.ui;
19
20 import java.io.IOException  ;
21 import java.io.OutputStream ;
22 import java.util.HashMap ;
23 import java.util.List ;
24 import org.apache.commons.logging.Log;
25 import org.pentaho.messages.Messages;
26 import org.pentaho.core.services.IActionRequestHandler;
27 import org.pentaho.core.session.IPentahoSession;
28 import org.pentaho.core.solution.IParameterProvider;
29 import org.pentaho.core.system.PentahoMessenger;
30 import org.pentaho.core.system.PentahoSystem;
31 import org.pentaho.core.ui.IPentahoUrlFactory;
32 import org.pentaho.messages.util.LocaleHelper;
33
34
40 public abstract class BaseUIComponent extends PentahoMessenger {
41
42 public static final boolean debug = PentahoSystem.debug;
43
44 protected HashMap xslProperties;
45
46 protected HashMap contentTypes;
47
48 private IActionRequestHandler requestHandler;
49
50 private IPentahoSession userSession;
51
52 public abstract Log getLogger();
53
54 private HashMap parameterProviders;
55
56 protected IPentahoUrlFactory urlFactory;
57
58 private String sourcePath;
59
60 public void handleRequest(OutputStream outputStream, IActionRequestHandler actionRequestHandler, String contentType, HashMap requestParameterProviders) throws IOException {
61
62 this.parameterProviders = requestParameterProviders;
63 this.requestHandler = actionRequestHandler;
64 String content = getContent(contentType);
65 if (content != null) {
66 outputStream.write(content.getBytes(LocaleHelper.getSystemEncoding()));
67 } else {
68 error(Messages.getString("BaseUI.ERROR_0001_NO_CONTENT")); }
70 }
71
72 protected void setSourcePath(String sourcePath) {
73 this.sourcePath = sourcePath;
74 }
75
76 protected String getSourcePath() {
77 return sourcePath;
78 }
79
80 public void setUrlFactory(IPentahoUrlFactory urlFactory) {
81 this.urlFactory = urlFactory;
82 }
83
84 public void setRequestHandler(IActionRequestHandler actionRequestHandler) {
85 this.requestHandler = actionRequestHandler;
86 }
87
88 public BaseUIComponent(IPentahoUrlFactory urlFactory, List messages, String sourcePath) {
89 super();
90 this.urlFactory = urlFactory;
91 xslProperties = new HashMap ();
92 contentTypes = new HashMap ();
93 setMessages(messages);
94 parameterProviders = new HashMap ();
95 this.sourcePath = sourcePath;
96 }
97
98 public void setParameterProvider(String name, IParameterProvider parameterProvider) {
99 if (parameterProviders == null) {
100 parameterProviders = new HashMap ();
101 }
102 parameterProviders.put(name, parameterProvider);
103 }
104
105 public void setParameterProviders(HashMap parameterProviders) {
106 this.parameterProviders = parameterProviders;
107 }
108
109 protected IPentahoUrlFactory getUrlFactory() {
110 return urlFactory;
111 }
112
113 protected IActionRequestHandler getRequestHandler() {
114 return requestHandler;
115 }
116
117 public HashMap getParameterProviders() {
118 return parameterProviders;
119 }
120
121 public String getParameter(String name, String defaultValue) {
122 IParameterProvider parameterProvider = (IParameterProvider) parameterProviders.get("options"); String value = null;
124 if (parameterProvider != null) {
125 value = parameterProvider.getStringParameter(name, null);
126 if (value != null) {
127 return value;
128 }
129 }
130 parameterProvider = (IParameterProvider) parameterProviders.get("request"); if (parameterProvider != null) {
132 value = parameterProvider.getStringParameter(name, null);
133 if (value != null) {
134 return value;
135 }
136 }
137 parameterProvider = (IParameterProvider) parameterProviders.get("session"); if (parameterProvider != null) {
139 value = parameterProvider.getStringParameter(name, null);
140 if (value != null) {
141 return value;
142 }
143 }
144 return defaultValue;
145 }
146
147 public String [] getParameterAsArray(String name) {
148 IParameterProvider parameterProvider = (IParameterProvider) parameterProviders.get("options"); Object value;
150 if (parameterProvider != null) {
151 value = parameterProvider.getParameter(name);
152 if (value != null) {
153 return toStringArray( value );
154 }
155 }
156 parameterProvider = (IParameterProvider) parameterProviders.get("request"); if (parameterProvider != null) {
158 value = parameterProvider.getParameter(name);
159 if (value != null) {
160 return toStringArray( value );
161 }
162 }
163 parameterProvider = (IParameterProvider) parameterProviders.get("session"); if (parameterProvider != null) {
165 value = parameterProvider.getParameter(name);
166 if (value != null) {
167 return toStringArray( value );
168 }
169 }
170 return( new String [] {} );
171 }
172
173 private String [] toStringArray( Object value ) {
174 if ( value == null ) {
175 return( new String [] {} );
176 }
177
178 if ( value instanceof String [] ) {
179 return( (String [])value );
180 }
181
182 return( new String [] { value.toString() } );
183 }
184
185 protected IPentahoSession getSession() {
186 return userSession;
187 }
188
189 public void setXsl(String mimeType, String xslName) {
190 contentTypes.put(mimeType, xslName);
191 }
192
193 public String getXsl(String mimeType) {
194 return (String ) contentTypes.get(mimeType);
195 }
196
197 public abstract boolean validate();
198
199 public boolean validate(IPentahoSession session, IActionRequestHandler actionRequestHandler) {
200 this.userSession = session;
201 this.genLogIdFromSession(session);
202 this.requestHandler = actionRequestHandler;
203 return validate();
204 }
205
206 public void setXslProperty(String name, String value) {
207 xslProperties.put(name, value);
208 }
209
210 public HashMap getXslProperties() {
211 return xslProperties;
212 }
213
214 public abstract String getContent(String mimeType);
215
216 public void done() {
217
218 }
219
220 }
221 |
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