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      1 /*
      2  * Copyright 2016, 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 package com.android.managedprovisioning.model;
     17 
     18 import android.os.Parcel;
     19 import android.os.Parcelable;
     20 import android.os.PersistableBundle;
     21 import com.android.internal.annotations.Immutable;
     22 import com.android.managedprovisioning.common.PersistableBundlable;
     23 import com.android.managedprovisioning.common.StoreUtils;
     24 import java.io.File;
     25 import java.io.IOException;
     26 
     27 /**
     28  * Stores disclaimers information.
     29  */
     30 @Immutable
     31 public class DisclaimersParam extends PersistableBundlable {
     32     private static final String HEADER_KEY = "HEADER_KEY";
     33     private static final String CONTENT_PATH_KEY = "CONTENT_PATH_KEY";
     34 
     35     public static final Parcelable.Creator<DisclaimersParam> CREATOR
     36             = new Parcelable.Creator<DisclaimersParam>() {
     37         @Override
     38         public DisclaimersParam createFromParcel(Parcel in) {
     39             return new DisclaimersParam(in);
     40         }
     41 
     42         @Override
     43         public DisclaimersParam[] newArray(int size) {
     44             return new DisclaimersParam[size];
     45         }
     46     };
     47 
     48     public final Disclaimer[] mDisclaimers;
     49 
     50     private DisclaimersParam(Builder builder) {
     51         mDisclaimers = builder.mDisclaimers;
     52     }
     53 
     54     private DisclaimersParam(Parcel in) {
     55         this(createBuilderFromPersistableBundle(
     56                 PersistableBundlable.getPersistableBundleFromParcel(in)));
     57     }
     58 
     59     public static DisclaimersParam fromPersistableBundle(PersistableBundle bundle) {
     60         return createBuilderFromPersistableBundle(bundle).build();
     61     }
     62 
     63     private static Builder createBuilderFromPersistableBundle(PersistableBundle bundle) {
     64         String[] headers = bundle.getStringArray(HEADER_KEY);
     65         String[] contentPaths = bundle.getStringArray(CONTENT_PATH_KEY);
     66         Builder builder = new Builder();
     67         if (headers != null) {
     68             // assume headers.length == contentPaths.length
     69             Disclaimer[] disclaimers = new Disclaimer[headers.length];
     70             for (int i = 0; i < headers.length; i++) {
     71                 disclaimers[i] = new Disclaimer(headers[i], contentPaths[i]);
     72             }
     73             builder.setDisclaimers(disclaimers);
     74         }
     75         return builder;
     76     }
     77 
     78     public void cleanUp() {
     79         if (mDisclaimers != null) {
     80             for(Disclaimer disclaimer : mDisclaimers) {
     81                 new File(disclaimer.mContentFilePath).delete();
     82             }
     83         }
     84     }
     85 
     86     @Override
     87     public PersistableBundle toPersistableBundle() {
     88         final PersistableBundle bundle = new PersistableBundle();
     89         if (mDisclaimers != null) {
     90             String[] headers = new String[mDisclaimers.length];
     91             String[] contentPaths = new String[mDisclaimers.length];
     92             for (int i = 0; i < mDisclaimers.length; i++) {
     93                 headers[i] = mDisclaimers[i].mHeader;
     94                 contentPaths[i] = mDisclaimers[i].mContentFilePath;
     95             }
     96             bundle.putStringArray(HEADER_KEY, headers);
     97             bundle.putStringArray(CONTENT_PATH_KEY, contentPaths);
     98         }
     99         return bundle;
    100     }
    101 
    102     @Immutable
    103     public static class Disclaimer {
    104         public final String mHeader;
    105         public final String mContentFilePath;
    106         public Disclaimer(String header, String contentFilePath) {
    107             mHeader = header;
    108             mContentFilePath = contentFilePath;
    109         }
    110     }
    111 
    112     public final static class Builder {
    113         private Disclaimer[] mDisclaimers;
    114 
    115         public Builder setDisclaimers(Disclaimer[] disclaimers) {
    116             mDisclaimers = disclaimers;
    117             return this;
    118         }
    119 
    120         public DisclaimersParam build() {
    121             return new DisclaimersParam(this);
    122         }
    123     }
    124 }
    125