Java tutorial
/* * Copyright (C) 2012 Aonyx * * 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 ch.aonyx.broker.ib.api.util; import org.apache.commons.lang3.StringUtils; import com.google.common.primitives.Bytes; /** * @author Christophe Marcourt * @since 1.0.0 */ public final class ByteArrayRequestBuilder implements RequestBuilder { private static final byte[] EOL = { 0 }; private byte[] bytes = new byte[] {}; public ByteArrayRequestBuilder() { } @Override public RequestBuilder append(final int i) { if (i != Integer.MAX_VALUE) { bytes = Bytes.concat(bytes, String.valueOf(i).getBytes()); } appendEol(); return this; } private void appendEol() { bytes = Bytes.concat(bytes, EOL); } @Override public RequestBuilder append(final boolean b) { int i = 0; if (b) { i = 1; } bytes = Bytes.concat(bytes, String.valueOf(i).getBytes()); appendEol(); return this; } @Override public RequestBuilder append(final double d) { if (d != Double.MAX_VALUE) { bytes = Bytes.concat(bytes, String.valueOf(d).getBytes()); } appendEol(); return this; } @Override public RequestBuilder append(final String s) { if (StringUtils.isNotEmpty(s)) { bytes = Bytes.concat(bytes, s.getBytes()); } appendEol(); return this; } @Override public byte[] toBytes() { return bytes; } }