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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2017 Red Hat, Inc., and individual contributors
 * as indicated by the @author tags.
 *
 * 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 org.jboss.remoting3;

import java.io.DataInput;
import java.io.IOException;
import java.io.InputStream;
import java.io.UTFDataFormatException;

import org.jboss.remoting3.util.StreamUtils;
import org.wildfly.common.Assert;

/**
 * An input stream for messages.
 *
 * @author David M. Lloyd
 */
public abstract class MessageInputStream extends InputStream implements DataInput {

    public void readFully(final byte[] b) throws IOException {
        StreamUtils.readFully(this, b);
    }

    public void readFully(final byte[] b, final int off, final int len) throws IOException {
        StreamUtils.readFully(this, b, off, len);
    }

    public int skipBytes(final int n) throws IOException {
        return (int) skip(n);
    }

    public boolean readBoolean() throws IOException {
        return readByte() != 0;
    }

    public byte readByte() throws IOException {
        return (byte) StreamUtils.readInt8(this);
    }

    public int readUnsignedByte() throws IOException {
        return StreamUtils.readInt8(this);
    }

    public short readShort() throws IOException {
        return (short) StreamUtils.readInt16BE(this);
    }

    public int readUnsignedShort() throws IOException {
        return StreamUtils.readInt16BE(this);
    }

    public char readChar() throws IOException {
        return (char) StreamUtils.readInt16BE(this);
    }

    public int readInt() throws IOException {
        return StreamUtils.readInt32BE(this);
    }

    public long readLong() throws IOException {
        return (long) readInt() << 32L | readInt() & 0xffffffffL;
    }

    public float readFloat() throws IOException {
        return Float.intBitsToFloat(readInt());
    }

    public double readDouble() throws IOException {
        return Double.longBitsToDouble(readLong());
    }

    /**
     * Not supported.
     *
     * @return nothing
     * @throws UnsupportedOperationException always
     */
    public String readLine() throws UnsupportedOperationException {
        throw Assert.unsupported();
    }

    public String readUTF() throws IOException {
        int len = readUnsignedShort();
        // might be bigger than necessary, but that's better than growing
        StringBuilder b = new StringBuilder(len);
        int x, y, z;
        for (int i = 0; i < len; i ++) {
            x = readUnsignedByte();
            if (x < 0b10000000) {
                b.appendCodePoint(x);
            } else if (0b110_00000 <= x && x <= 0b110_11111) {
                if (i ++ == len) {
                    throw truncated();
                }
                y = readUnsignedByte();
                if (0b10_000000 <= y && y <= 0b10_111111) {
                     b.appendCodePoint((x & 0b11111) << 6 | y & 0b111111);
                } else {
                    throw malformed();
                }
            } else if (0b1110_0000 <= x && x <= 0b1110_1111) {
                if (i ++ == len) {
                    throw truncated();
                }
                y = readUnsignedByte();
                if (0b10_000000 <= y && y <= 0b10_111111) {
                    if (i ++ == len) {
                        throw truncated();
                    }
                    z = readUnsignedByte();
                    if (0b10_000000 <= z && z <= 0b10_111111) {
                        b.appendCodePoint((x & 0b1111) << 12 | (y & 0b111111) << 6 | z & 0b111111);
                    } else {
                        throw malformed();
                    }
                } else {
                    throw malformed();
                }
            } else {
                throw malformed();
            }
        }
        return b.toString();
    }

    private static UTFDataFormatException truncated() {
        return new UTFDataFormatException("Truncated input");
    }

    private static UTFDataFormatException malformed() {
        return new UTFDataFormatException("Malformed input byte");
    }
}