1 /* 2 * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package com.oracle.ipack.signature; 27 28 import com.oracle.ipack.blobs.Blob; 29 import java.io.DataOutput; 30 import java.io.IOException; 31 32 public final class RequirementBlob extends Blob { 33 private final Requirement requirement; 34 35 public RequirementBlob(final Requirement requirement) { 36 this.requirement = requirement; 37 } 38 39 @Override 40 protected int getMagic() { 41 return 0xfade0c00; 42 } 43 44 @Override 45 protected int getPayloadSize() { 46 return 4 + requirement.getSize(); 47 } 48 49 @Override 50 protected void writePayload( 51 final DataOutput dataOutput) throws IOException { 52 dataOutput.writeInt(1); // expression form of requirement 53 requirement.write(dataOutput); 54 } 55 }