1/*
2 * Copyright (C) 2015 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
17package com.android.mtp;
18
19import java.util.Objects;
20import static com.android.mtp.MtpDatabaseConstants.DocumentType;
21
22/**
23 * Static utilities for ID.
24 */
25class Identifier {
26    final int mDeviceId;
27    final int mStorageId;
28    final int mObjectHandle;
29    final String mDocumentId;
30    final @DocumentType int mDocumentType;
31
32    Identifier(int deviceId, int storageId, int objectHandle, String documentId,
33            @DocumentType int documentType) {
34        mDeviceId = deviceId;
35        mStorageId = storageId;
36        mObjectHandle = objectHandle;
37        mDocumentId = documentId;
38        mDocumentType = documentType;
39    }
40
41    @Override
42    public boolean equals(Object obj) {
43        if (!(obj instanceof Identifier))
44            return false;
45        final Identifier other = (Identifier) obj;
46        return mDeviceId == other.mDeviceId && mStorageId == other.mStorageId &&
47                mObjectHandle == other.mObjectHandle && mDocumentId.equals(other.mDocumentId);
48    }
49
50    @Override
51    public int hashCode() {
52        return Objects.hash(mDeviceId, mStorageId, mObjectHandle, mDocumentId);
53    }
54
55    @Override
56    public String toString() {
57        final StringBuilder builder = new StringBuilder();
58        builder.append("Identifier { ");
59
60        builder.append("mDeviceId: ");
61        builder.append(mDeviceId);
62        builder.append(", ");
63
64        builder.append("mStorageId: ");
65        builder.append(mStorageId);
66        builder.append(", ");
67
68        builder.append("mObjectHandle: ");
69        builder.append(mObjectHandle);
70        builder.append(", ");
71
72        builder.append("mDocumentId: ");
73        builder.append(mDocumentId);
74        builder.append(", ");
75
76        builder.append("mDocumentType: ");
77        builder.append(mDocumentType);
78        builder.append(" }");
79        return builder.toString();
80    }
81}
82