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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.annotations.Nullable;
     20 import com.android.sdklib.repository.SdkAddonConstants;
     21 
     22 import org.w3c.dom.Document;
     23 
     24 import java.io.InputStream;
     25 
     26 
     27 /**
     28  * An sdk-addon source, i.e. a download site for addons and extra packages.
     29  * A repository describes one or more {@link Package}s available for download.
     30  */
     31 public class SdkAddonSource extends SdkSource {
     32 
     33     /**
     34      * Constructs a new source for the given repository URL.
     35      * @param url The source URL. Cannot be null. If the URL ends with a /, the default
     36      *            repository.xml filename will be appended automatically.
     37      * @param uiName The UI-visible name of the source. Can be null.
     38      */
     39     public SdkAddonSource(String url, String uiName) {
     40         super(url, uiName);
     41     }
     42 
     43     /**
     44      * Returns true if this is an addon source.
     45      * We only load addons and extras from these sources.
     46      */
     47     @Override
     48     public boolean isAddonSource() {
     49         return true;
     50     }
     51 
     52     @Override
     53     protected String[] getDefaultXmlFileUrls() {
     54         return new String[] { SdkAddonConstants.URL_DEFAULT_FILENAME };
     55     }
     56 
     57     @Override
     58     protected int getNsLatestVersion() {
     59         return SdkAddonConstants.NS_LATEST_VERSION;
     60     }
     61 
     62     @Override
     63     protected String getNsUri() {
     64         return SdkAddonConstants.NS_URI;
     65     }
     66 
     67     @Override
     68     protected String getNsPattern() {
     69         return SdkAddonConstants.NS_PATTERN;
     70     }
     71 
     72     @Override
     73     protected String getSchemaUri(int version) {
     74         return SdkAddonConstants.getSchemaUri(version);
     75     }
     76 
     77     @Override
     78     protected String getRootElementName() {
     79         return SdkAddonConstants.NODE_SDK_ADDON;
     80     }
     81 
     82     @Override
     83     protected InputStream getXsdStream(int version) {
     84         return SdkAddonConstants.getXsdStream(version);
     85     }
     86 
     87     /**
     88      * There is no support forward evolution of the sdk-addon schema yet since we
     89      * currently have only one version.
     90      *
     91      * @param xml The input XML stream. Can be null.
     92      * @return Always null.
     93      * @null This implementation always return null.
     94      */
     95     @Override
     96     protected Document findAlternateToolsXml(@Nullable InputStream xml) {
     97         return null;
     98     }
     99 }
    100