Author: julien_viet Date: 2011-09-07 13:30:31 -0400 (Wed, 07 Sep 2011) New Revision: 7332 Added: portal/trunk/component/common/src/main/java/org/exoplatform/commons/serialization/MarshalledObject.java portal/trunk/component/common/src/test/java/org/exoplatform/commons/utils/TestMarshalledObject.java Log: GTNPORTAL-2087 : Simple MarshalledObject to contain an marshalled object into bytes Added: portal/trunk/component/common/src/main/java/org/exoplatform/commons/serialization/MarshalledObject.java =================================================================== --- portal/trunk/component/common/src/main/java/org/exoplatform/commons/serialization/MarshalledObject.java (rev 0) +++ portal/trunk/component/common/src/main/java/org/exoplatform/commons/serialization/MarshalledObject.java 2011-09-07 17:30:31 UTC (rev 7332) @@ -0,0 +1,102 @@ +/* + * Copyright (C) 2011 eXo Platform SAS. + * + * This is free software; you can redistribute it and/or modify it + * under the terms of the GNU Lesser General Public License as + * published by the Free Software Foundation; either version 2.1 of + * the License, or (at your option) any later version. + * + * This software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this software; if not, write to the Free + * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA, or see the FSF site: http://www.fsf.org. + */ +package org.exoplatform.commons.serialization; + +import org.gatein.common.io.IOTools; +import org.gatein.common.io.UndeclaredIOException; + +import java.io.IOException; +import java.io.Serializable; +import java.lang.reflect.UndeclaredThrowableException; +import java.util.Arrays; + +/** + * A simple marshalled object that retain the state of an object as a bytes. + * + * @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a> + */ +public class MarshalledObject<S extends Serializable> +{ + + public static <S extends Serializable> MarshalledObject<S> marshall(S serializable) throws NullPointerException + { + if (serializable == null) + { + throw new NullPointerException("Cannot marshall null"); + } + try + { + byte[] bytes = IOTools.serialize(serializable); + return new MarshalledObject<S>(serializable.getClass().getClassLoader(), bytes); + } + catch (IOException e) + { + throw new UndeclaredIOException(e); + } + } + + /** . */ + private final ClassLoader loader; + + /** . */ + private final byte[] state; + + private MarshalledObject(ClassLoader loader, byte[] state) + { + this.loader = loader; + this.state = state; + } + + @Override + public boolean equals(Object obj) + { + if (obj == this) + { + return true; + } + if (obj instanceof MarshalledObject) + { + MarshalledObject<?> that = (MarshalledObject<?>)obj; + return Arrays.equals(state, that.state); + } + return false; + } + + @Override + public int hashCode() + { + return Arrays.hashCode(state); + } + + public S unmarshall() throws UndeclaredThrowableException + { + try + { + return (S)IOTools.unserialize(state, loader); + } + catch (IOException e) + { + throw new UndeclaredIOException(e); + } + catch (ClassNotFoundException e) + { + throw new UndeclaredThrowableException(e); + } + } +} Added: portal/trunk/component/common/src/test/java/org/exoplatform/commons/utils/TestMarshalledObject.java =================================================================== --- portal/trunk/component/common/src/test/java/org/exoplatform/commons/utils/TestMarshalledObject.java (rev 0) +++ portal/trunk/component/common/src/test/java/org/exoplatform/commons/utils/TestMarshalledObject.java 2011-09-07 17:30:31 UTC (rev 7332) @@ -0,0 +1,72 @@ +/** + * Copyright (C) 2009 eXo Platform SAS. + * + * This is free software; you can redistribute it and/or modify it + * under the terms of the GNU Lesser General Public License as + * published by the Free Software Foundation; either version 2.1 of + * the License, or (at your option) any later version. + * + * This software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this software; if not, write to the Free + * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA, or see the FSF site: http://www.fsf.org. + */ + +package org.exoplatform.commons.utils; + +import org.exoplatform.commons.serialization.MarshalledObject; +import org.exoplatform.component.test.AbstractGateInTest; + +/** @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a> */ +public class TestMarshalledObject extends AbstractGateInTest +{ + + public void testSerialization() + { + String from = "foo"; + MarshalledObject<String> marshalled = MarshalledObject.marshall(from); + String to = marshalled.unmarshall(); + assertEquals(to, from); + } + + public void testNPE() + { + try + { + MarshalledObject.marshall(null); + fail(); + } + catch (NullPointerException e) + { + } + } + + public void testHashCode() + { + MarshalledObject<String> marshalled1 = MarshalledObject.marshall("foo"); + assertEquals(marshalled1.hashCode(), marshalled1.hashCode()); + MarshalledObject<String> marshalled2 = MarshalledObject.marshall("foo"); + assertEquals(marshalled1.hashCode(), marshalled2.hashCode()); + assertEquals(marshalled2.hashCode(), marshalled1.hashCode()); + MarshalledObject<String> marshalled3 = MarshalledObject.marshall("bar"); + assertNotSame(marshalled1.hashCode(), marshalled3.hashCode()); + assertNotSame(marshalled3.hashCode(), marshalled1.hashCode()); + } + + public void testEquals() + { + MarshalledObject<String> marshalled1 = MarshalledObject.marshall("foo"); + assertTrue(marshalled1.equals(marshalled1)); + MarshalledObject<String> marshalled2 = MarshalledObject.marshall("foo"); + assertTrue(marshalled1.equals(marshalled2)); + assertTrue(marshalled2.equals(marshalled1)); + MarshalledObject<String> marshalled3 = MarshalledObject.marshall("bar"); + assertFalse(marshalled1.equals(marshalled3)); + assertFalse(marshalled3.equals(marshalled1)); + } +}