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      1 /*
      2  * Copyright (C) 2009 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.sdklib.internal.repository;
     18 
     19 import com.android.prefs.AndroidLocation;
     20 import com.android.prefs.AndroidLocation.AndroidLocationException;
     21 import com.android.sdklib.ISdkLog;
     22 
     23 import java.io.File;
     24 import java.io.FileInputStream;
     25 import java.io.FileOutputStream;
     26 import java.io.IOException;
     27 import java.util.ArrayList;
     28 import java.util.Iterator;
     29 import java.util.Properties;
     30 
     31 /**
     32  * A list of sdk-repository sources.
     33  */
     34 public class RepoSources {
     35 
     36     private static final String KEY_COUNT = "count";
     37 
     38     private static final String KEY_SRC = "src";
     39 
     40     private static final String SRC_FILENAME = "repositories.cfg"; //$NON-NLS-1$
     41 
     42     private ArrayList<RepoSource> mSources = new ArrayList<RepoSource>();
     43 
     44     public RepoSources() {
     45     }
     46 
     47     /**
     48      * Adds a new source to the Sources list.
     49      */
     50     public void add(RepoSource source) {
     51         mSources.add(source);
     52     }
     53 
     54     /**
     55      * Removes a source from the Sources list.
     56      */
     57     public void remove(RepoSource source) {
     58         mSources.remove(source);
     59     }
     60 
     61     /**
     62      * Returns the sources list array. This is never null.
     63      */
     64     public RepoSource[] getSources() {
     65         return mSources.toArray(new RepoSource[mSources.size()]);
     66     }
     67 
     68     /**
     69      * Loads all user sources. This <em>replaces</em> all existing user sources
     70      * by the ones from the property file.
     71      */
     72     public void loadUserSources(ISdkLog log) {
     73 
     74         // Remove all existing user sources
     75         for (Iterator<RepoSource> it = mSources.iterator(); it.hasNext(); ) {
     76             RepoSource s = it.next();
     77             if (s.isUserSource()) {
     78                 it.remove();
     79             }
     80         }
     81 
     82         // Load new user sources from property file
     83         FileInputStream fis = null;
     84         try {
     85             String folder = AndroidLocation.getFolder();
     86             File f = new File(folder, SRC_FILENAME);
     87             if (f.exists()) {
     88                 fis = new FileInputStream(f);
     89 
     90                 Properties props = new Properties();
     91                 props.load(fis);
     92 
     93                 int count = Integer.parseInt(props.getProperty(KEY_COUNT, "0"));
     94 
     95                 for (int i = 0; i < count; i++) {
     96                     String url = props.getProperty(String.format("%s%02d", KEY_SRC, i));  //$NON-NLS-1$
     97                     if (url != null) {
     98                         RepoSource s = new RepoSource(url, true /*userSource*/);
     99                         if (!hasSource(s)) {
    100                             mSources.add(s);
    101                         }
    102                     }
    103                 }
    104             }
    105 
    106         } catch (NumberFormatException e) {
    107             log.error(e, null);
    108 
    109         } catch (AndroidLocationException e) {
    110             log.error(e, null);
    111 
    112         } catch (IOException e) {
    113             log.error(e, null);
    114 
    115         } finally {
    116             if (fis != null) {
    117                 try {
    118                     fis.close();
    119                 } catch (IOException e) {
    120                 }
    121             }
    122         }
    123     }
    124 
    125     /**
    126      * Returns true if there's already a similar source in the sources list.
    127      * <p/>
    128      * The search is O(N), which should be acceptable on the expectedly small source list.
    129      */
    130     public boolean hasSource(RepoSource source) {
    131         for (RepoSource s : mSources) {
    132             if (s.equals(source)) {
    133                 return true;
    134             }
    135         }
    136         return false;
    137     }
    138 
    139     /**
    140      * Saves all the user sources.
    141      * @param log Logger. Cannot be null.
    142      */
    143     public void saveUserSources(ISdkLog log) {
    144         FileOutputStream fos = null;
    145         try {
    146             String folder = AndroidLocation.getFolder();
    147             File f = new File(folder, SRC_FILENAME);
    148 
    149             fos = new FileOutputStream(f);
    150 
    151             Properties props = new Properties();
    152 
    153             int count = 0;
    154             for (RepoSource s : mSources) {
    155                 if (s.isUserSource()) {
    156                     count++;
    157                     props.setProperty(String.format("%s%02d", KEY_SRC, count), s.getUrl());  //$NON-NLS-1$
    158                 }
    159             }
    160             props.setProperty(KEY_COUNT, Integer.toString(count));
    161 
    162             props.store( fos, "## User Sources for Android tool");  //$NON-NLS-1$
    163 
    164         } catch (AndroidLocationException e) {
    165             log.error(e, null);
    166 
    167         } catch (IOException e) {
    168             log.error(e, null);
    169 
    170         } finally {
    171             if (fos != null) {
    172                 try {
    173                     fos.close();
    174                 } catch (IOException e) {
    175                 }
    176             }
    177         }
    178 
    179     }
    180 }
    181