Svetoslav Ganov | 4b9a4d1 | 2013-06-11 15:20:06 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2013 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 android.printservice; |
| 18 | |
| 19 | import android.content.ComponentName; |
| 20 | import android.content.Context; |
| 21 | import android.content.pm.PackageManager; |
| 22 | import android.content.pm.PackageManager.NameNotFoundException; |
| 23 | import android.content.pm.ResolveInfo; |
| 24 | import android.content.res.Resources; |
| 25 | import android.content.res.TypedArray; |
| 26 | import android.content.res.XmlResourceParser; |
| 27 | import android.os.Parcel; |
| 28 | import android.os.Parcelable; |
| 29 | import android.util.AttributeSet; |
| 30 | import android.util.Log; |
| 31 | import android.util.Xml; |
| 32 | |
| 33 | import org.xmlpull.v1.XmlPullParser; |
| 34 | import org.xmlpull.v1.XmlPullParserException; |
| 35 | |
| 36 | import java.io.IOException; |
| 37 | |
| 38 | /** |
| 39 | * This class describes a {@link PrintService}. A print service knows |
| 40 | * how to communicate with one or more printers over one or more protocols |
| 41 | * and exposes printers for use by the applications via the platform print |
| 42 | * APIs. |
| 43 | * |
| 44 | * @see PrintService |
| 45 | * @see android.print.PrintManager |
| 46 | * |
| 47 | * @hide |
| 48 | */ |
| 49 | public final class PrintServiceInfo implements Parcelable { |
| 50 | |
Svetoslav Ganov | 4b9a4d1 | 2013-06-11 15:20:06 -0700 | [diff] [blame] | 51 | private static final String LOG_TAG = PrintServiceInfo.class.getSimpleName(); |
| 52 | |
| 53 | private static final String TAG_PRINT_SERVICE = "print-service"; |
| 54 | |
| 55 | private final String mId; |
| 56 | |
| 57 | private final ResolveInfo mResolveInfo; |
| 58 | |
| 59 | private final String mSettingsActivityName; |
| 60 | |
| 61 | private final String mAddPrintersActivityName; |
| 62 | |
| 63 | /** |
| 64 | * Creates a new instance. |
| 65 | * |
| 66 | * @hide |
| 67 | */ |
| 68 | public PrintServiceInfo(Parcel parcel) { |
| 69 | mId = parcel.readString(); |
| 70 | mResolveInfo = parcel.readParcelable(null); |
| 71 | mSettingsActivityName = parcel.readString(); |
| 72 | mAddPrintersActivityName = parcel.readString(); |
| 73 | } |
| 74 | |
| 75 | /** |
| 76 | * Creates a new instance. |
| 77 | * |
| 78 | * @param resolveInfo The service resolve info. |
| 79 | * @param settingsActivityName Optional settings activity name. |
| 80 | * @param addPrintersActivityName Optional add printers activity name. |
| 81 | */ |
| 82 | public PrintServiceInfo(ResolveInfo resolveInfo, String settingsActivityName, |
| 83 | String addPrintersActivityName) { |
| 84 | mId = new ComponentName(resolveInfo.serviceInfo.packageName, |
| 85 | resolveInfo.serviceInfo.name).flattenToString(); |
| 86 | mResolveInfo = resolveInfo; |
| 87 | mSettingsActivityName = settingsActivityName; |
| 88 | mAddPrintersActivityName = addPrintersActivityName; |
| 89 | } |
| 90 | |
| 91 | /** |
| 92 | * Creates a new instance. |
| 93 | * |
| 94 | * @param resolveInfo The service resolve info. |
| 95 | * @param context Context for accessing resources. |
| 96 | * @throws XmlPullParserException If a XML parsing error occurs. |
| 97 | * @throws IOException If a I/O error occurs. |
Svetoslav Ganov | 4b9a4d1 | 2013-06-11 15:20:06 -0700 | [diff] [blame] | 98 | */ |
| 99 | public static PrintServiceInfo create(ResolveInfo resolveInfo, Context context) { |
| 100 | String settingsActivityName = null; |
| 101 | String addPrintersActivityName = null; |
| 102 | |
| 103 | XmlResourceParser parser = null; |
| 104 | PackageManager packageManager = context.getPackageManager(); |
| 105 | parser = resolveInfo.serviceInfo.loadXmlMetaData(packageManager, |
| 106 | PrintService.SERVICE_META_DATA); |
| 107 | if (parser != null) { |
| 108 | try { |
| 109 | int type = 0; |
| 110 | while (type != XmlPullParser.END_DOCUMENT && type != XmlPullParser.START_TAG) { |
| 111 | type = parser.next(); |
| 112 | } |
| 113 | |
| 114 | String nodeName = parser.getName(); |
| 115 | if (!TAG_PRINT_SERVICE.equals(nodeName)) { |
| 116 | throw new XmlPullParserException( |
Svetoslav Ganov | a002715 | 2013-06-25 14:59:53 -0700 | [diff] [blame] | 117 | "Meta-data does not start with " + TAG_PRINT_SERVICE + " tag"); |
Svetoslav Ganov | 4b9a4d1 | 2013-06-11 15:20:06 -0700 | [diff] [blame] | 118 | } |
| 119 | |
| 120 | Resources resources = packageManager.getResourcesForApplication( |
| 121 | resolveInfo.serviceInfo.applicationInfo); |
| 122 | AttributeSet allAttributes = Xml.asAttributeSet(parser); |
| 123 | TypedArray attributes = resources.obtainAttributes(allAttributes, |
| 124 | com.android.internal.R.styleable.PrintService); |
| 125 | |
| 126 | settingsActivityName = attributes.getString( |
| 127 | com.android.internal.R.styleable.PrintService_settingsActivity); |
| 128 | |
| 129 | addPrintersActivityName = attributes.getString( |
| 130 | com.android.internal.R.styleable.PrintService_addPrintersActivity); |
| 131 | |
| 132 | attributes.recycle(); |
| 133 | } catch (IOException ioe) { |
| 134 | Log.w(LOG_TAG, "Error reading meta-data:" + ioe); |
| 135 | } catch (XmlPullParserException xppe) { |
| 136 | Log.w(LOG_TAG, "Error reading meta-data:" + xppe); |
| 137 | } catch (NameNotFoundException e) { |
| 138 | Log.e(LOG_TAG, "Unable to load resources for: " |
| 139 | + resolveInfo.serviceInfo.packageName); |
| 140 | } finally { |
| 141 | if (parser != null) { |
| 142 | parser.close(); |
| 143 | } |
| 144 | } |
| 145 | } |
| 146 | |
| 147 | return new PrintServiceInfo(resolveInfo, settingsActivityName, addPrintersActivityName); |
| 148 | } |
| 149 | |
| 150 | /** |
| 151 | * The accessibility service id. |
| 152 | * <p> |
| 153 | * <strong>Generated by the system.</strong> |
| 154 | * </p> |
| 155 | * |
| 156 | * @return The id. |
| 157 | */ |
| 158 | public String getId() { |
| 159 | return mId; |
| 160 | } |
| 161 | |
| 162 | /** |
| 163 | * The service {@link ResolveInfo}. |
| 164 | * |
| 165 | * @return The info. |
| 166 | */ |
| 167 | public ResolveInfo getResolveInfo() { |
| 168 | return mResolveInfo; |
| 169 | } |
| 170 | |
| 171 | /** |
| 172 | * The settings activity name. |
| 173 | * <p> |
| 174 | * <strong>Statically set from |
| 175 | * {@link PrintService#SERVICE_META_DATA meta-data}.</strong> |
| 176 | * </p> |
| 177 | * |
| 178 | * @return The settings activity name. |
| 179 | */ |
| 180 | public String getSettingsActivityName() { |
| 181 | return mSettingsActivityName; |
| 182 | } |
| 183 | |
| 184 | /** |
| 185 | * The add printers activity name. |
| 186 | * <p> |
| 187 | * <strong>Statically set from |
| 188 | * {@link PrintService#SERVICE_META_DATA meta-data}.</strong> |
| 189 | * </p> |
| 190 | * |
| 191 | * @return The add printers activity name. |
| 192 | */ |
| 193 | public String getAddPrintersActivityName() { |
| 194 | return mAddPrintersActivityName; |
| 195 | } |
| 196 | |
| 197 | /** |
| 198 | * {@inheritDoc} |
| 199 | */ |
| 200 | public int describeContents() { |
| 201 | return 0; |
| 202 | } |
| 203 | |
| 204 | public void writeToParcel(Parcel parcel, int flagz) { |
| 205 | parcel.writeString(mId); |
| 206 | parcel.writeParcelable(mResolveInfo, 0); |
| 207 | parcel.writeString(mSettingsActivityName); |
| 208 | parcel.writeString(mAddPrintersActivityName); |
| 209 | } |
| 210 | |
| 211 | @Override |
| 212 | public int hashCode() { |
Svetoslav Ganov | a002715 | 2013-06-25 14:59:53 -0700 | [diff] [blame] | 213 | return 31 + ((mId == null) ? 0 : mId.hashCode()); |
Svetoslav Ganov | 4b9a4d1 | 2013-06-11 15:20:06 -0700 | [diff] [blame] | 214 | } |
| 215 | |
| 216 | @Override |
| 217 | public boolean equals(Object obj) { |
| 218 | if (this == obj) { |
| 219 | return true; |
| 220 | } |
| 221 | if (obj == null) { |
| 222 | return false; |
| 223 | } |
| 224 | if (getClass() != obj.getClass()) { |
| 225 | return false; |
| 226 | } |
| 227 | PrintServiceInfo other = (PrintServiceInfo) obj; |
| 228 | if (mId == null) { |
| 229 | if (other.mId != null) { |
| 230 | return false; |
| 231 | } |
| 232 | } else if (!mId.equals(other.mId)) { |
| 233 | return false; |
| 234 | } |
| 235 | return true; |
| 236 | } |
| 237 | |
| 238 | @Override |
| 239 | public String toString() { |
| 240 | StringBuilder builder = new StringBuilder(); |
| 241 | builder.append("PrintServiceInfo{"); |
| 242 | builder.append("id:").append(mId).append(", "); |
| 243 | builder.append("resolveInfo:").append(mResolveInfo).append(", "); |
Svetoslav Ganov | a002715 | 2013-06-25 14:59:53 -0700 | [diff] [blame] | 244 | builder.append("settingsActivityName:").append(mSettingsActivityName); |
| 245 | builder.append("addPrintersActivityName:").append(mAddPrintersActivityName); |
Svetoslav Ganov | 4b9a4d1 | 2013-06-11 15:20:06 -0700 | [diff] [blame] | 246 | builder.append("}"); |
| 247 | return builder.toString(); |
| 248 | } |
| 249 | |
| 250 | public static final Parcelable.Creator<PrintServiceInfo> CREATOR = |
| 251 | new Parcelable.Creator<PrintServiceInfo>() { |
| 252 | public PrintServiceInfo createFromParcel(Parcel parcel) { |
| 253 | return new PrintServiceInfo(parcel); |
| 254 | } |
| 255 | |
| 256 | public PrintServiceInfo[] newArray(int size) { |
| 257 | return new PrintServiceInfo[size]; |
| 258 | } |
| 259 | }; |
| 260 | } |