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      1 /*
      2  * Copyright (C) 2006 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.server.am;
     18 
     19 import android.content.Context;
     20 import android.content.Intent;
     21 import android.os.IBinder;
     22 import android.util.ArrayMap;
     23 import android.util.ArraySet;
     24 
     25 import java.io.PrintWriter;
     26 
     27 /**
     28  * A particular Intent that has been bound to a Service.
     29  */
     30 final class IntentBindRecord {
     31     /** The running service. */
     32     final ServiceRecord service;
     33     /** The intent that is bound.*/
     34     final Intent.FilterComparison intent; //
     35     /** All apps that have bound to this Intent. */
     36     final ArrayMap<ProcessRecord, AppBindRecord> apps
     37             = new ArrayMap<ProcessRecord, AppBindRecord>();
     38     /** Binder published from service. */
     39     IBinder binder;
     40     /** Set when we have initiated a request for this binder. */
     41     boolean requested;
     42     /** Set when we have received the requested binder. */
     43     boolean received;
     44     /** Set when we still need to tell the service all clients are unbound. */
     45     boolean hasBound;
     46     /** Set when the service's onUnbind() has asked to be told about new clients. */
     47     boolean doRebind;
     48 
     49     String stringName;      // caching of toString
     50 
     51     void dump(PrintWriter pw, String prefix) {
     52         pw.print(prefix); pw.print("service="); pw.println(service);
     53         dumpInService(pw, prefix);
     54     }
     55 
     56     void dumpInService(PrintWriter pw, String prefix) {
     57         pw.print(prefix); pw.print("intent={");
     58                 pw.print(intent.getIntent().toShortString(false, true, false, false));
     59                 pw.println('}');
     60         pw.print(prefix); pw.print("binder="); pw.println(binder);
     61         pw.print(prefix); pw.print("requested="); pw.print(requested);
     62                 pw.print(" received="); pw.print(received);
     63                 pw.print(" hasBound="); pw.print(hasBound);
     64                 pw.print(" doRebind="); pw.println(doRebind);
     65         for (int i=0; i<apps.size(); i++) {
     66             AppBindRecord a = apps.valueAt(i);
     67             pw.print(prefix); pw.print("* Client AppBindRecord{");
     68                     pw.print(Integer.toHexString(System.identityHashCode(a)));
     69                     pw.print(' '); pw.print(a.client); pw.println('}');
     70             a.dumpInIntentBind(pw, prefix + "  ");
     71         }
     72     }
     73 
     74     IntentBindRecord(ServiceRecord _service, Intent.FilterComparison _intent) {
     75         service = _service;
     76         intent = _intent;
     77     }
     78 
     79     int collectFlags() {
     80         int flags = 0;
     81         for (int i=apps.size()-1; i>=0; i--) {
     82             final ArraySet<ConnectionRecord> connections = apps.valueAt(i).connections;
     83             for (int j=connections.size()-1; j>=0; j--) {
     84                 flags |= connections.valueAt(j).flags;
     85             }
     86         }
     87         return flags;
     88     }
     89 
     90     public String toString() {
     91         if (stringName != null) {
     92             return stringName;
     93         }
     94         StringBuilder sb = new StringBuilder(128);
     95         sb.append("IntentBindRecord{");
     96         sb.append(Integer.toHexString(System.identityHashCode(this)));
     97         sb.append(' ');
     98         if ((collectFlags()&Context.BIND_AUTO_CREATE) != 0) {
     99             sb.append("CR ");
    100         }
    101         sb.append(service.shortName);
    102         sb.append(':');
    103         if (intent != null) {
    104             intent.getIntent().toShortString(sb, false, false, false, false);
    105         }
    106         sb.append('}');
    107         return stringName = sb.toString();
    108     }
    109 }
    110