GalParser.java

/* Copyright (C) 2010 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 com.android.exchange.adapter;

import com.android.exchange.EasSyncService;
import com.android.exchange.provider.GalResult;

import java.io.IOException;
import java.io.InputStream;

/**
 * Parse the result of a GAL command.
 */
public class GalParser extends Parser {
    private EasSyncService mService;
    GalResult mGalResult = new GalResult();

    public GalParser(InputStream in, EasSyncService service) throws IOException {
        super(in);
        mService = service;
    }

    public GalResult getGalResult() {
        return mGalResult;
    }

    @Override
    public boolean parse() throws IOException {
        if (nextTag(START_DOCUMENT) != Tags.SEARCH_SEARCH) {
            throw new IOException();
        }
        while (nextTag(START_DOCUMENT) != END_DOCUMENT) {
            if (tag == Tags.SEARCH_RESPONSE) {
                parseResponse(mGalResult);
            } else {
                skipTag();
            }
         }
         return mGalResult.total > 0;
     }

     public void parseProperties(GalResult galResult) throws IOException {
         String displayName = null;
         String email = null;
         while (nextTag(Tags.SEARCH_STORE) != END) {
             if (tag == Tags.GAL_DISPLAY_NAME) {
                 displayName = getValue();
             } else if (tag == Tags.GAL_EMAIL_ADDRESS) {
                 email = getValue();
             } else {
                 skipTag();
             }
         }
         if (displayName != null && email != null) {
             galResult.addGalData(0, displayName, email);
         }
     }

     public void parseResult(GalResult galResult) throws IOException {
         while (nextTag(Tags.SEARCH_STORE) != END) {
             if (tag == Tags.SEARCH_PROPERTIES) {
                 parseProperties(galResult);
             } else {
                 skipTag();
             }
         }
     }

     public void parseResponse(GalResult galResult) throws IOException {
         while (nextTag(Tags.SEARCH_RESPONSE) != END) {
             if (tag == Tags.SEARCH_STORE) {
                 parseStore(galResult);
             } else {
                 skipTag();
             }
         }
     }

     public void parseStore(GalResult galResult) throws IOException {
         while (nextTag(Tags.SEARCH_STORE) != END) {
             if (tag == Tags.SEARCH_RESULT) {
                 parseResult(galResult);
             } else if (tag == Tags.SEARCH_RANGE) {
                 // Retrieve value, even if we're not using it for debug logging
                 String range = getValue();
                 if (EasSyncService.DEBUG_GAL_SERVICE) {
                     mService.userLog("GAL result range: " + range);
                 }
             } else if (tag == Tags.SEARCH_TOTAL) {
                 galResult.total = getValueInt();
             } else {
                 skipTag();
             }
         }
     }
}