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Package: MessageViewer
MessageViewer
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| MessageViewer() |
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| MessageViewer(Message) |
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| addToolbar() |
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| getBodyComponent() |
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| loadHeaders() |
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| setCommandContext(String, DataHandler) |
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| setMessage(Message) |
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Coverage
1: /*
2: * Copyright (c) 1997, 2021 Oracle and/or its affiliates. All rights reserved.
3: *
4: * This program and the accompanying materials are made available under the
5: * terms of the Eclipse Distribution License v. 1.0, which is available at
6: * http://www.eclipse.org/org/documents/edl-v10.php.
7: *
8: * SPDX-License-Identifier: BSD-3-Clause
9: */
10:
11: import java.awt.*;
12: import java.awt.event.*;
13: import jakarta.mail.*;
14: import jakarta.activation.*;
15: import java.util.Date;
16: import java.io.IOException;
17: import javax.swing.JPanel;
18:
19: /**
20: * @author Christopher Cotton
21: * @author Bill Shannon
22: */
23:
24: public class MessageViewer extends JPanel implements CommandObject {
25:
26: Message displayed = null;
27: DataHandler dataHandler = null;
28: String verb = null;
29: Component mainbody;
30: TextArea headers;
31:
32: public MessageViewer() {
33: this(null);
34: }
35:
36: public MessageViewer(Message what) {
37: // set our layout
38: super(new GridBagLayout());
39:
40: // add the toolbar
41: addToolbar();
42:
43: GridBagConstraints gb = new GridBagConstraints();
44: gb.gridwidth = GridBagConstraints.REMAINDER;
45: gb.fill = GridBagConstraints.BOTH;
46: gb.weightx = 1.0;
47: gb.weighty = 0.0;
48:
49: // add the headers
50: headers = new TextArea("", 4, 80, TextArea.SCROLLBARS_NONE);
51: headers.setEditable(false);
52: add(headers, gb);
53:
54: // now display our message
55: setMessage(what);
56: }
57:
58: /**
59: * sets the current message to be displayed in the viewer
60: */
61: public void setMessage(Message what) {
62: displayed = what;
63:
64:• if (mainbody != null)
65: remove(mainbody);
66:
67:• if (what != null) {
68: loadHeaders();
69: mainbody = getBodyComponent();
70: } else {
71: headers.setText("");
72: TextArea dummy = new TextArea("", 24, 80, TextArea.SCROLLBARS_NONE);
73: dummy.setEditable(false);
74: mainbody = dummy;
75: }
76:
77: // add the main body
78: GridBagConstraints gb = new GridBagConstraints();
79: gb.gridwidth = GridBagConstraints.REMAINDER;
80: gb.fill = GridBagConstraints.BOTH;
81: gb.weightx = 1.0;
82: gb.weighty = 1.0;
83: add(mainbody, gb);
84:
85: invalidate();
86: validate();
87: }
88:
89: protected void addToolbar() {
90: GridBagConstraints gb = new GridBagConstraints();
91: gb.gridheight = 1;
92: gb.gridwidth = 1;
93: gb.fill = GridBagConstraints.NONE;
94: gb.anchor = GridBagConstraints.WEST;
95: gb.weightx = 0.0;
96: gb.weighty = 0.0;
97: gb.insets = new Insets(4,4,4,4);
98:
99: // structure button
100: gb.gridwidth = GridBagConstraints.REMAINDER; // only for the last one
101: Button b = new Button("Structure");
102: b.addActionListener( new StructureAction());
103: add(b, gb);
104: }
105:
106: protected void loadHeaders() {
107: // setup what we want in our viewer
108: StringBuffer sb = new StringBuffer();
109:
110: // date
111: sb.append("Date: ");
112: try {
113: Date duh = displayed.getSentDate();
114:• if (duh != null) {
115: sb.append(duh.toString());
116: } else {
117: sb.append("Unknown");
118: }
119:
120: sb.append("\n");
121:
122: // from
123: sb.append("From: ");
124: Address[] adds = displayed.getFrom();
125:• if (adds != null && adds.length > 0) {
126: sb.append(adds[0].toString());
127: }
128: sb.append("\n");
129:
130: // to
131: sb.append("To: ");
132: adds = displayed.getRecipients(Message.RecipientType.TO);
133:• if (adds != null && adds.length > 0) {
134: sb.append(adds[0].toString());
135: }
136: sb.append("\n");
137:
138: // subject
139: sb.append("Subject: ");
140: sb.append(displayed.getSubject());
141:
142: headers.setText(sb.toString());
143: } catch (MessagingException me) {
144: headers.setText("");
145: }
146: }
147:
148: protected Component getBodyComponent() {
149: //------------
150: // now get a content viewer for the main type...
151: //------------
152: try {
153: DataHandler dh = displayed.getDataHandler();
154: CommandInfo ci = dh.getCommand("view");
155:• if (ci == null) {
156: throw new MessagingException("view command failed on: " +
157: displayed.getContentType());
158: }
159:
160: Object bean = dh.getBean(ci);
161:• if (bean instanceof Component) {
162: return (Component)bean;
163: } else {
164: throw new MessagingException("bean is not a component " +
165: bean.getClass().toString());
166: }
167: } catch (MessagingException me) {
168: return new Label(me.toString());
169: }
170: }
171:
172: /**
173: * the CommandObject method to accept our DataHandler
174: * @param dh the datahandler used to get the content
175: */
176: public void setCommandContext(String verb,
177: DataHandler dh) throws IOException {
178: this.verb = verb;
179: dataHandler = dh;
180:
181: Object o = dh.getContent();
182:• if (o instanceof Message) {
183: setMessage((Message)o);
184: }
185: else {
186: System.out.println(
187: "MessageViewer - content not a Message object, " + o);
188:• if (o != null){
189: System.out.println(o.getClass().toString());
190: }
191: }
192: }
193:
194:
195: class StructureAction implements ActionListener {
196: StringBuffer sb;
197:
198: public void actionPerformed(ActionEvent e) {
199: System.out.println("\n\nMessage Structure");
200: dumpPart("", displayed);
201: }
202:
203: protected void dumpPart(String prefix, Part p) {
204: try {
205: System.out.println(prefix + "----------------");
206: System.out.println(prefix +
207: "Content-Type: " + p.getContentType());
208: System.out.println(prefix +
209: "Class: " + p.getClass().toString());
210:
211: Object o = p.getContent();
212: if (o == null) {
213: System.out.println(prefix + "Content: is null");
214: } else {
215: System.out.println(prefix +
216: "Content: " + o.getClass().toString());
217: }
218:
219: if (o instanceof Multipart) {
220: String newpref = prefix + "\t";
221: Multipart mp = (Multipart)o;
222: int count = mp.getCount();
223: for (int i = 0; i < count; i++) {
224: dumpPart(newpref, mp.getBodyPart(i));
225: }
226: }
227: } catch (MessagingException e) {
228: e.printStackTrace();
229: } catch (IOException ioex) {
230: System.out.println("Cannot get content" + ioex.getMessage());
231: }
232: }
233: }
234: }