Here you can find the source of getByteBufferFromList(List
| Parameter | Description |
|---|---|
| values | a parameter |
| Parameter | Description |
|---|---|
| IOException | an exception |
public static ByteBuffer getByteBufferFromList(List<Object> values) throws IOException
//package com.java2s; /*/*w ww . ja v a2 s .c om*/ * Agiato: A simple no frill Cassandra API * Author: Pranab Ghosh * * 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. */ import java.io.ByteArrayOutputStream; import java.io.DataOutputStream; import java.io.IOException; import java.nio.ByteBuffer; import java.util.List; public class Main { /** * ByteBuffer from list * @param values * @return * @throws IOException */ public static ByteBuffer getByteBufferFromList(List<Object> values) throws IOException { return ByteBuffer.wrap(getBytesFromList(values)); } /** * byte array from list * @param values * @return * @throws IOException */ public static byte[] getBytesFromList(List<Object> values) throws IOException { ByteArrayOutputStream bos = new ByteArrayOutputStream(); DataOutputStream dos = new DataOutputStream(bos); for (Object value : values) { if (value instanceof String) dos.writeUTF((String) value); else if (value instanceof Long) dos.writeLong((Long) value); else if (value instanceof Integer) dos.writeInt((Integer) value); else if (value instanceof Double) dos.writeDouble((Long) value); } dos.flush(); return bos.toByteArray(); } }