| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.vxquery.runtime.functions.cast; |
| |
| import java.io.DataOutput; |
| import java.io.IOException; |
| |
| import org.apache.commons.codec.binary.Base64OutputStream; |
| import org.apache.hyracks.data.std.primitive.UTF8StringPointable; |
| import org.apache.hyracks.data.std.util.ByteArrayAccessibleOutputStream; |
| import org.apache.vxquery.datamodel.accessors.atomic.XSBinaryPointable; |
| import org.apache.vxquery.datamodel.values.ValueTag; |
| import org.apache.vxquery.exceptions.SystemException; |
| |
| public class CastToBase64BinaryOperation extends AbstractCastToOperation { |
| private ByteArrayAccessibleOutputStream baaos = new ByteArrayAccessibleOutputStream(); |
| |
| @Override |
| public void convertBase64Binary(XSBinaryPointable binaryp, DataOutput dOut) throws SystemException, IOException { |
| dOut.write(ValueTag.XS_BASE64_BINARY_TAG); |
| dOut.write(binaryp.getByteArray(), binaryp.getStartOffset(), binaryp.getLength()); |
| } |
| |
| @Override |
| public void convertHexBinary(XSBinaryPointable binaryp, DataOutput dOut) throws SystemException, IOException { |
| dOut.write(ValueTag.XS_BASE64_BINARY_TAG); |
| dOut.write(binaryp.getByteArray(), binaryp.getStartOffset(), binaryp.getLength()); |
| } |
| |
| @Override |
| public void convertString(UTF8StringPointable stringp, DataOutput dOut) throws SystemException, IOException { |
| baaos.reset(); |
| Base64OutputStream b64os = new Base64OutputStream(baaos, false); |
| b64os.write(stringp.getByteArray(), stringp.getCharStartOffset(), stringp.getUTF8Length()); |
| |
| dOut.write(ValueTag.XS_BASE64_BINARY_TAG); |
| dOut.write((byte) ((baaos.size() >>> 8) & 0xFF)); |
| dOut.write((byte) ((baaos.size() >>> 0) & 0xFF)); |
| dOut.write(baaos.getByteArray(), 0, baaos.size()); |
| |
| b64os.close(); |
| } |
| |
| @Override |
| public void convertUntypedAtomic(UTF8StringPointable stringp, DataOutput dOut) throws SystemException, IOException { |
| convertString(stringp, dOut); |
| } |
| } |