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1
17
18 package org.pentaho.core.solution;
19
20 import java.io.InputStream  ;
21 import java.io.OutputStream ;
22 import java.util.Iterator ;
23 import java.util.Map ;
24
25 import javax.servlet.http.HttpServletResponse ;
26
27 import org.pentaho.core.repository.IContentItem;
28 import org.pentaho.core.services.HttpContentItem;
29
30 public class HttpOutputHandler implements IOutputHandler {
31
32 private HttpServletResponse response;
33
34 private IContentItem outputContent;
35
36 private IContentItem feedbackContent;
37
38 boolean allowFeedback;
39
40 private boolean contentGenerated;
41
42 private int outputType = OUTPUT_TYPE_DEFAULT;
43
44 public HttpOutputHandler(HttpServletResponse response, OutputStream outputStream, boolean allowFeedback) {
45 this.response = response;
46
47 outputContent = new HttpContentItem(outputStream, this);
48 feedbackContent = new HttpContentItem(outputStream, this);
49
50 this.allowFeedback = allowFeedback;
51 contentGenerated = false;
52 }
53
54 public void setOutputPreference(int outputType) {
55 this.outputType = outputType;
56 }
57
58 public int getOutputPreference() {
59 return outputType;
60 }
61
62 public void setMimeType(String mimeType) {
63 response.setContentType(mimeType);
64 }
65
66 public boolean contentDone() {
67 return contentGenerated;
68
69 }
70
71 public boolean allowFeedback() {
72 return allowFeedback;
73 }
74
75
80 public Map getOutputDefs() {
81 return null;
83 }
84
85
90 public IOutputDef getOutputDef(String name) {
91 return null;
93 }
94
95
100 public IContentItem getFeedbackContentItem() {
101 if (allowFeedback) {
102 contentGenerated = true;
104 return feedbackContent;
105 }
106 return null;
107 }
108
109
114 public IContentItem getOutputContentItem(String objectName, String contentName) {
115 if (IOutputHandler.FILE.equals(objectName)) {
116 return FileOutputHandler.getFileOutputContentItem(contentName);
117 }
118 if (objectName.equals(IOutputHandler.RESPONSE) && contentName.equals(IOutputHandler.CONTENT)) {
119 contentGenerated = true;
121 return outputContent;
122 } else {
123 return null;
124 }
125 }
126
127 public IContentItem getOutputContentItem(String objectName, String contentName, String title, String url) {
128 return getOutputContentItem( objectName, contentName );
129 }
130
131 public void setContentItem(IContentItem content, String objectName, String contentName) {
132 if (objectName.equals(IOutputHandler.RESPONSE) && contentName.equals(IOutputHandler.CONTENT)) {
133 response.setContentType(content.getMimeType());
134 }
135 }
136
137 public void setOutput(String name, Object value) {
138 if ( value == null ) {
139 return;
140 }
141
142 if ("redirect".equalsIgnoreCase(name)) { try {
144 response.sendRedirect( value.toString() );
145 } catch (Exception e) {
146
147 }
148 }
149 else if ("header".equalsIgnoreCase(name)) { try {
151 if ( value instanceof Map ) {
152 for ( Iterator it = ((Map )value).entrySet().iterator(); it.hasNext(); ) {
153 Map.Entry entry = (Map.Entry )it.next();
154 response.addHeader( entry.getKey().toString(), entry.getValue().toString() );
155 }
156 }
157 else {
158 String strVal = value.toString();
159 int i = strVal.indexOf( '=' );
160 String headerName = strVal.substring( 0, i );
161 String headerValue = strVal.substring( i+1 );
162 response.addHeader( headerName, headerValue );
163 }
164 } catch (Exception e) {
165 }
167 }
168
169 else if (IOutputHandler.CONTENT.equalsIgnoreCase(name)) {
170 try {
171 if ( value instanceof IContentItem ) {
172 IContentItem content = (IContentItem)value;
173 if ( (response.getContentType() == null) || (!response.getContentType().equalsIgnoreCase( content.getMimeType() ) ) ) {
174 response.setContentType( content.getMimeType() );
175 }
176 content.getMimeType();
177 InputStream inStr = content.getInputStream();
178 try {
179 OutputStream outStr = response.getOutputStream();
180 int inCnt = 0;
181 byte[] buf = new byte[4096];
182 while (-1 != (inCnt = inStr.read(buf))) {
183 outStr.write(buf, 0, inCnt);
184 }
185 } finally {
186 try {
187 inStr.close();
188 } catch (Exception ignored) {}
189 }
190 contentGenerated = true;
191 }
192 else {
193 if ( response.getContentType() == null ) {
194 response.setContentType( "text/html" ); }
196
197 response.getOutputStream().write( value.toString().getBytes() );
198 contentGenerated = true;
199 }
200 } catch (Exception e) {
201
202 }
203 }
204 }
205
206 }
207 |
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