| /* |
| * 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.ignite.internal.binary; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import org.apache.ignite.IgniteCheckedException; |
| import org.apache.ignite.binary.BinaryObjectException; |
| import org.apache.ignite.configuration.IgniteConfiguration; |
| import org.apache.ignite.internal.util.tostring.GridToStringExclude; |
| import org.apache.ignite.internal.util.typedef.internal.S; |
| import org.apache.ignite.marshaller.AbstractNodeNameAwareMarshaller; |
| import org.jetbrains.annotations.Nullable; |
| import sun.misc.Unsafe; |
| |
| /** |
| * Implementation of {@link org.apache.ignite.marshaller.Marshaller} that lets to serialize and deserialize all objects |
| * in the binary format. |
| */ |
| public class BinaryMarshaller extends AbstractNodeNameAwareMarshaller { |
| /** */ |
| @GridToStringExclude |
| private GridBinaryMarshaller impl; |
| |
| /** |
| * Checks whether {@code BinaryMarshaller} is able to work on the current JVM. |
| * <p> |
| * As long as {@code BinaryMarshaller} uses JVM-private API, which is not guaranteed |
| * to be available on all JVM, this method should be called to ensure marshaller could work properly. |
| * <p> |
| * Result of this method is automatically checked in constructor. |
| * |
| * @return {@code true} if {@code BinaryMarshaller} can work on the current JVM or |
| * {@code false} if it can't. |
| */ |
| @SuppressWarnings({"TypeParameterExtendsFinalClass", "ErrorNotRethrown"}) |
| public static boolean available() { |
| try { |
| Class<? extends Unsafe> unsafeCls = Unsafe.class; |
| |
| unsafeCls.getMethod("allocateInstance", Class.class); |
| unsafeCls.getMethod("copyMemory", Object.class, long.class, Object.class, long.class, long.class); |
| |
| return true; |
| } |
| catch (Exception ignored) { |
| return false; |
| } |
| catch (NoClassDefFoundError ignored) { |
| return false; |
| } |
| } |
| |
| /** |
| * Sets {@link BinaryContext}. |
| * <p/> |
| * @param ctx Binary context. |
| */ |
| @SuppressWarnings("UnusedDeclaration") |
| private void setBinaryContext(BinaryContext ctx, IgniteConfiguration cfg) { |
| ctx.configure(this, cfg); |
| |
| impl = new GridBinaryMarshaller(ctx); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override protected byte[] marshal0(@Nullable Object obj) throws IgniteCheckedException { |
| return impl.marshal(obj, false); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override protected void marshal0(@Nullable Object obj, OutputStream out) throws IgniteCheckedException { |
| byte[] arr = marshal(obj); |
| |
| try { |
| out.write(arr); |
| } |
| catch (Exception e) { |
| throw new BinaryObjectException("Failed to marshal the object: " + obj, e); |
| } |
| } |
| |
| /** {@inheritDoc} */ |
| @Override protected <T> T unmarshal0(byte[] bytes, @Nullable ClassLoader clsLdr) throws IgniteCheckedException { |
| return impl.deserialize(bytes, clsLdr); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override protected <T> T unmarshal0(InputStream in, @Nullable ClassLoader clsLdr) throws IgniteCheckedException { |
| ByteArrayOutputStream buf = new ByteArrayOutputStream(); |
| |
| // we have to fully read the InputStream because GridBinaryMarshaller requires support of a method that |
| // returns number of bytes remaining. |
| try { |
| byte[] arr = new byte[4096]; |
| |
| int cnt; |
| |
| while ((cnt = in.read(arr)) != -1) |
| buf.write(arr, 0, cnt); |
| |
| buf.flush(); |
| |
| return impl.deserialize(buf.toByteArray(), clsLdr); |
| } |
| catch (IOException e) { |
| throw new BinaryObjectException("Failed to unmarshal the object from InputStream", e); |
| } |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void onUndeploy(ClassLoader ldr) { |
| impl.context().onUndeploy(ldr); |
| } |
| |
| /** |
| * @return GridBinaryMarshaller instance. |
| */ |
| public GridBinaryMarshaller binaryMarshaller() { |
| return impl; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public String toString() { |
| return S.toString(BinaryMarshaller.class, this); |
| } |
| } |