| /* |
| * Copyright (C) 2011 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.internal.telephony; |
| |
| import android.util.Log; |
| |
| /** |
| * Wrapper class for an ICC EF containing a bit field of enabled services. |
| */ |
| public abstract class IccServiceTable { |
| protected final byte[] mServiceTable; |
| |
| protected IccServiceTable(byte[] table) { |
| mServiceTable = table; |
| } |
| |
| // Get the class name to use for log strings |
| protected abstract String getTag(); |
| |
| // Get the array of enums to use for toString |
| protected abstract Object[] getValues(); |
| |
| /** |
| * Returns if the specified service is available. |
| * @param service the service number as a zero-based offset (the enum ordinal) |
| * @return true if the service is available; false otherwise |
| */ |
| protected boolean isAvailable(int service) { |
| int offset = service / 8; |
| if (offset >= mServiceTable.length) { |
| // Note: Enums are zero-based, but the TS service numbering is one-based |
| Log.e(getTag(), "isAvailable for service " + (service + 1) + " fails, max service is " + |
| (mServiceTable.length * 8)); |
| return false; |
| } |
| int bit = service % 8; |
| return (mServiceTable[offset] & (1 << bit)) != 0; |
| } |
| |
| public String toString() { |
| Object[] values = getValues(); |
| int numBytes = mServiceTable.length; |
| StringBuilder builder = new StringBuilder(getTag()).append('[') |
| .append(numBytes * 8).append("]={ "); |
| |
| boolean addComma = false; |
| for (int i = 0; i < numBytes; i++) { |
| byte currentByte = mServiceTable[i]; |
| for (int bit = 0; bit < 8; bit++) { |
| if ((currentByte & (1 << bit)) != 0) { |
| if (addComma) { |
| builder.append(", "); |
| } else { |
| addComma = true; |
| } |
| int ordinal = (i * 8) + bit; |
| if (ordinal < values.length) { |
| builder.append(values[ordinal]); |
| } else { |
| builder.append('#').append(ordinal + 1); // service number (one-based) |
| } |
| } |
| } |
| } |
| return builder.append(" }").toString(); |
| } |
| } |