| /* |
| * Copyright (C) 2007 The Android Open Source Project |
| * |
| * 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. |
| */ |
| |
| package android.syncml.pim.vcalendar; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.IOException; |
| import android.util.Config; |
| import android.util.Log; |
| |
| import android.syncml.pim.VDataBuilder; |
| import android.syncml.pim.VParser; |
| |
| public class VCalParser{ |
| |
| private final static String TAG = "VCalParser"; |
| |
| public final static String VERSION_VCALENDAR10 = "vcalendar1.0"; |
| public final static String VERSION_VCALENDAR20 = "vcalendar2.0"; |
| |
| private VParser mParser = null; |
| private String mVersion = null; |
| |
| public VCalParser() { |
| } |
| |
| public boolean parse(String vcalendarStr, VDataBuilder builder) |
| throws VCalException { |
| |
| vcalendarStr = verifyVCal(vcalendarStr); |
| try{ |
| boolean isSuccess = mParser.parse( |
| new ByteArrayInputStream(vcalendarStr.getBytes()), |
| "US-ASCII", builder); |
| |
| if (!isSuccess) { |
| if (mVersion.equals(VERSION_VCALENDAR10)) { |
| if(Config.LOGD) |
| Log.d(TAG, "Parse failed for vCal 1.0 parser." |
| + " Try to use 2.0 parser."); |
| mVersion = VERSION_VCALENDAR20; |
| return parse(vcalendarStr, builder); |
| }else |
| throw new VCalException("parse failed.(even use 2.0 parser)"); |
| } |
| }catch (IOException e){ |
| throw new VCalException(e.getMessage()); |
| } |
| return true; |
| } |
| |
| /** |
| * Verify vCalendar string, and initialize mVersion according to it. |
| * */ |
| private String verifyVCal(String vcalStr) { |
| |
| //Version check |
| judgeVersion(vcalStr); |
| |
| vcalStr = vcalStr.replaceAll("\r\n", "\n"); |
| String[] strlist = vcalStr.split("\n"); |
| |
| StringBuilder replacedStr = new StringBuilder(); |
| |
| for (int i = 0; i < strlist.length; i++) { |
| if (strlist[i].indexOf(":") < 0) { |
| if (strlist[i].length() == 0 && strlist[i + 1].indexOf(":") > 0) |
| replacedStr.append(strlist[i]).append("\r\n"); |
| else |
| replacedStr.append(" ").append(strlist[i]).append("\r\n"); |
| } else |
| replacedStr.append(strlist[i]).append("\r\n"); |
| } |
| if(Config.LOGD)Log.d(TAG, "After verify:\r\n" + replacedStr.toString()); |
| |
| return replacedStr.toString(); |
| } |
| |
| /** |
| * If version not given. Search from vcal string of the VERSION property. |
| * Then instance mParser to appropriate parser. |
| */ |
| private void judgeVersion(String vcalStr) { |
| |
| if (mVersion == null) { |
| int versionIdx = vcalStr.indexOf("\nVERSION:"); |
| |
| mVersion = VERSION_VCALENDAR10; |
| |
| if (versionIdx != -1){ |
| String versionStr = vcalStr.substring( |
| versionIdx, vcalStr.indexOf("\n", versionIdx + 1)); |
| if (versionStr.indexOf("2.0") > 0) |
| mVersion = VERSION_VCALENDAR20; |
| } |
| } |
| if (mVersion.equals(VERSION_VCALENDAR10)) |
| mParser = new VCalParser_V10(); |
| if (mVersion.equals(VERSION_VCALENDAR20)) |
| mParser = new VCalParser_V20(); |
| } |
| } |
| |