Caldav: first Task (VTODO) implementation step

git-svn-id: http://svn.code.sf.net/p/davmail/code/trunk@1711 3d1905a2-6b24-0410-a738-b14d5a86fcbd

src/java/davmail/exchange/ExchangeSession.java

@@ -2118,6 +2118,91 @@ public abstract class ExchangeSession {
 
     }
 
+    /**
+     * Contact object
+     */
+    public abstract class Task extends Item {
+
+        /**
+         * @inheritDoc
+         */
+        public Task(String folderPath, String itemName, Map<String, String> properties, String etag, String noneMatch) {
+            super(folderPath, itemName.endsWith(".vcf") ? itemName.substring(0, itemName.length() - 3) + "EML" : itemName, etag, noneMatch);
+            this.putAll(properties);
+        }
+
+        /**
+         * @inheritDoc
+         */
+        protected Task() {
+        }
+
+        /**
+         * Convert EML extension to ics.
+         *
+         * @return item name
+         */
+        @Override
+        public String getName() {
+            String name = super.getName();
+            if (name.endsWith(".EML")) {
+                name = name.substring(0, name.length() - 3) + "ics";
+            }
+            return name;
+        }
+
+        /**
+         * Set contact name
+         *
+         * @param name contact name
+         */
+        public void setName(String name) {
+            this.itemName = name;
+        }
+
+        /**
+         * Compute vtodo uid from name.
+         *
+         * @return uid
+         * @throws URIException on error
+         */
+        protected String getUid() throws URIException {
+            String uid = getName();
+            int dotIndex = uid.lastIndexOf('.');
+            if (dotIndex > 0) {
+                uid = uid.substring(0, dotIndex);
+            }
+            return URIUtil.encodePath(uid);
+        }
+
+        @Override
+        public String getContentType() {
+            return "text/calendar;charset=UTF-8";
+        }
+
+
+        @Override
+        public String getBody() throws HttpException {
+            // build VTODO from task information
+            ICSBufferedWriter writer = new ICSBufferedWriter();
+            writer.writeLine("BEGIN:VCALENDAR");
+            writer.writeLine("VERSION:2.0");
+            writer.writeLine("BEGIN:VTODO");
+
+            writer.appendProperty("UID", getUid());
+
+            writer.appendProperty("SUMMARY", get("subject"));
+
+            writer.appendProperty("LAST-MODIFIED", get("lastmodified"));
+            writer.appendProperty("DTSTAMP", get("dtstamp"));
+            writer.appendProperty("CREATED", get("created"));
+
+            writer.writeLine("END:VTODO");
+            writer.writeLine("END:VCALENDAR");
+            return writer.toString();
+        }
+    }
+
     /**
      * Calendar event object.
      */

src/java/davmail/exchange/ICSBufferedWriter.java

@@ -84,4 +84,38 @@ public class ICSBufferedWriter {
         return buffer.toString();
     }
 
+    /**
+     * Append single value property
+     *
+     * @param propertyName  property name
+     * @param propertyValue property value
+     */
+    public void appendProperty(String propertyName, String propertyValue) {
+        if ((propertyValue != null) && (propertyValue.length() > 0)) {
+            StringBuilder lineBuffer = new StringBuilder();
+            lineBuffer.append(propertyName);
+            lineBuffer.append(':');
+            appendMultilineEncodedValue(lineBuffer, propertyValue);
+            writeLine(lineBuffer.toString());
+        }
+
+    }
+
+    /**
+     * Append and encode \n to \\n in value.
+     *
+     * @param buffer line buffer
+     * @param value  value
+     */
+    protected void appendMultilineEncodedValue(StringBuilder buffer, String value) {
+        for (int i = 0; i < value.length(); i++) {
+            char c = value.charAt(i);
+            if (c == '\n') {
+                buffer.append("\\n");
+            } else {
+                buffer.append(value.charAt(i));
+            }
+        }
+    }
+
 }

src/java/davmail/exchange/VCardWriter.java

@@ -30,40 +30,6 @@ public class VCardWriter extends ICSBufferedWriter {
         writeLine("VERSION:3.0");
     }
 
-    /**
-     * Append single value property
-     *
-     * @param propertyName  property name
-     * @param propertyValue property value
-     */
-    public void appendProperty(String propertyName, String propertyValue) {
-        if ((propertyValue != null) && (propertyValue.length() > 0)) {
-            StringBuilder lineBuffer = new StringBuilder();
-            lineBuffer.append(propertyName);
-            lineBuffer.append(':');
-            appendMultilineEncodedValue(lineBuffer, propertyValue);
-            writeLine(lineBuffer.toString());
-        }
-
-    }
-
-    /**
-     * Append and encode \n to \\n in value.
-     *
-     * @param buffer line buffer
-     * @param value  value
-     */
-    protected void appendMultilineEncodedValue(StringBuilder buffer, String value) {
-        for (int i = 0; i < value.length(); i++) {
-            char c = value.charAt(i);
-            if (c == '\n') {
-                buffer.append("\\n");
-            } else {
-                buffer.append(value.charAt(i));
-            }
-        }
-    }
-
     /**
      * Append compound value
      *