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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 
     24 import java.io.PrintWriter;
     25 import java.util.HashMap;
     26 import java.util.Iterator;
     27 
     28 /**
     29  * A particular Intent that has been bound to a Service.
     30  */
     31 final class IntentBindRecord {
     32     /** The running service. */
     33     final ServiceRecord service;
     34     /** The intent that is bound.*/
     35     final Intent.FilterComparison intent; //
     36     /** All apps that have bound to this Intent. */
     37     final ArrayMap<ProcessRecord, AppBindRecord> apps
     38             = new ArrayMap<ProcessRecord, AppBindRecord>();
     39     /** Binder published from service. */
     40     IBinder binder;
     41     /** Set when we have initiated a request for this binder. */
     42     boolean requested;
     43     /** Set when we have received the requested binder. */
     44     boolean received;
     45     /** Set when we still need to tell the service all clients are unbound. */
     46     boolean hasBound;
     47     /** Set when the service's onUnbind() has asked to be told about new clients. */
     48     boolean doRebind;
     49 
     50     String stringName;      // caching of toString
     51 
     52     void dump(PrintWriter pw, String prefix) {
     53         pw.print(prefix); pw.print("service="); pw.println(service);
     54         dumpInService(pw, prefix);
     55     }
     56 
     57     void dumpInService(PrintWriter pw, String prefix) {
     58         pw.print(prefix); pw.print("intent={");
     59                 pw.print(intent.getIntent().toShortString(false, true, false, false));
     60                 pw.println('}');
     61         pw.print(prefix); pw.print("binder="); pw.println(binder);
     62         pw.print(prefix); pw.print("requested="); pw.print(requested);
     63                 pw.print(" received="); pw.print(received);
     64                 pw.print(" hasBound="); pw.print(hasBound);
     65                 pw.print(" doRebind="); pw.println(doRebind);
     66         for (int i=0; i<apps.size(); i++) {
     67             AppBindRecord a = apps.valueAt(i);
     68             pw.print(prefix); pw.print("* Client AppBindRecord{");
     69                     pw.print(Integer.toHexString(System.identityHashCode(a)));
     70                     pw.print(' '); pw.print(a.client); pw.println('}');
     71             a.dumpInIntentBind(pw, prefix + "  ");
     72         }
     73     }
     74 
     75     IntentBindRecord(ServiceRecord _service, Intent.FilterComparison _intent) {
     76         service = _service;
     77         intent = _intent;
     78     }
     79 
     80     int collectFlags() {
     81         int flags = 0;
     82         for (int i=apps.size()-1; i>=0; i--) {
     83             AppBindRecord app = apps.valueAt(i);
     84             if (app.connections.size() > 0) {
     85                 for (ConnectionRecord conn : app.connections) {
     86                     flags |= conn.flags;
     87                 }
     88             }
     89         }
     90         return flags;
     91     }
     92 
     93     public String toString() {
     94         if (stringName != null) {
     95             return stringName;
     96         }
     97         StringBuilder sb = new StringBuilder(128);
     98         sb.append("IntentBindRecord{");
     99         sb.append(Integer.toHexString(System.identityHashCode(this)));
    100         sb.append(' ');
    101         if ((collectFlags()&Context.BIND_AUTO_CREATE) != 0) {
    102             sb.append("CR ");
    103         }
    104         sb.append(service.shortName);
    105         sb.append(':');
    106         if (intent != null) {
    107             intent.getIntent().toShortString(sb, false, false, false, false);
    108         }
    109         sb.append('}');
    110         return stringName = sb.toString();
    111     }
    112 }
    113