svn commit: r216141 - /webservices/mirae/trunk/samples/sax/memo/MemoViewer.java

[ia...@apache.org]

Author: ias
Date: Wed Jul 13 04:36:46 2005
New Revision: 216141

URL: http://svn.apache.org/viewcvs?rev=216141&view=rev
Log:
Add a sample for Mirae XML-SAX.

Added:
    webservices/mirae/trunk/samples/sax/memo/MemoViewer.java

Added: webservices/mirae/trunk/samples/sax/memo/MemoViewer.java
URL: http://svn.apache.org/viewcvs/webservices/mirae/trunk/samples/sax/memo/MemoViewer.java?rev=216141&view=auto
==============================================================================
--- webservices/mirae/trunk/samples/sax/memo/MemoViewer.java (added)
+++ webservices/mirae/trunk/samples/sax/memo/MemoViewer.java Wed Jul 13 04:36:46 2005
@@ -0,0 +1,155 @@
+import java.io.InputStream;
+/*
+ * Copyright 2001-2004 The Apache Software Foundation.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+import java.io.IOException;
+
+import javax.microedition.lcdui.Command;
+import javax.microedition.lcdui.CommandListener;
+import javax.microedition.lcdui.Display;
+import javax.microedition.lcdui.Displayable;
+import javax.microedition.lcdui.TextField;
+import javax.microedition.lcdui.TextBox;
+
+import javax.microedition.midlet.MIDlet;
+
+import javax.microedition.io.Connector;
+import javax.microedition.io.StreamConnection;
+
+import javax.xml.parsers.SAXParser;
+import javax.xml.parsers.SAXParserFactory;
+import javax.xml.parsers.ParserConfigurationException;
+
+import org.xml.sax.Attributes;
+import org.xml.sax.SAXException;
+import org.xml.sax.SAXParseException;
+import org.xml.sax.helpers.DefaultHandler;
+
+public class MemoViewer extends MIDlet implements CommandListener {
+
+    private static final String MEMO_URL = "http://localhost:8080/memo.xml";
+
+    private static final Command CMD_EXIT = new Command("Exit", Command.EXIT, 1);
+
+    private static final Command CMD_VIEW = new Command("View", Command.ITEM, 1);
+
+    private Display display;
+
+    private SAXParserFactory factory;
+
+    private SAXParser parser;
+
+    private MemoHandler memoHandler;
+
+    private TextBox memoBox;
+
+    public MemoViewer() {
+        memoBox = new TextBox("Memo Viewer", "Disconnected", 100, TextField.ANY);
+        factory = SAXParserFactory.newInstance();
+        try {
+            parser = factory.newSAXParser();
+        } catch (ParserConfigurationException e) {
+        } catch (SAXException e) {
+        }
+        memoHandler = new MemoHandler(memoBox);
+    }
+
+    protected void startApp() {
+        display = Display.getDisplay(this);
+        memoBox.addCommand(CMD_EXIT);
+        memoBox.addCommand(CMD_VIEW);
+        memoBox.setCommandListener(this);
+        display.setCurrent(memoBox);
+    }
+
+    public void commandAction(Command c, Displayable d) {
+
+        if (c == CMD_EXIT) {
+            destroyApp(false);
+            notifyDestroyed();
+        } else if (c == CMD_VIEW) {
+            StreamConnection con = null;
+            InputStream in = null;
+            try {
+                con = (StreamConnection) Connector.open(MEMO_URL);
+                in = con.openInputStream();
+                try {
+                    parser.parse(in, memoHandler);
+                } catch (SAXParseException se) {
+                } catch (SAXException se) {
+                }
+            } catch (IOException e) {
+            } finally {
+                if (in != null) {
+                    try {
+                        in.close();
+                    } catch (IOException e) {
+                    }
+                }
+                if (con != null) {
+                    try {
+                        con.close();
+                    } catch (IOException e) {
+                    }
+                }
+            }
+        }
+    }
+
+    protected void destroyApp(boolean unconditional) {
+    }
+
+    protected void pauseApp() {
+    }
+
+    private class MemoHandler extends DefaultHandler {
+        private StringBuffer textBuffer;
+
+        private TextBox memoBox;
+
+        MemoHandler(TextBox memoBox) {
+            this.memoBox = memoBox;
+        }
+
+        public void startElement(String uri, String localName, String qName,
+                Attributes attributes) throws SAXException {
+            if (localName.equals("subject")) {
+                textBuffer = null;
+            } else if (localName.equals("content")) {
+                textBuffer = null;
+            }
+        }
+
+        public void endElement(String uri, String localName, String qName)
+                throws SAXException {
+            if (localName.equals("subject")) {
+                memoBox.setTitle(textBuffer.toString());
+            } else if (localName.equals("content")) {
+                memoBox.setString(textBuffer.toString());
+            }
+        }
+
+        public void characters(char[] ch, int start, int length)
+                throws SAXException {
+            String s = new String(ch, start, length);
+            if (textBuffer == null) {
+                textBuffer = new StringBuffer(s);
+            } else {
+                textBuffer.append(s);
+            }
+        }
+    }
+}
\ No newline at end of file



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