org.dcache.xrootd.protocol.messages.QueryRequest.java Source code

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Here is the source code for org.dcache.xrootd.protocol.messages.QueryRequest.java

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/**
 * Copyright (C) 2011-2018 dCache.org <support@dcache.org>
 *
 * This file is part of xrootd4j.
 *
 * xrootd4j 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 3 of the License, or
 * (at your option) any later version.
 *
 * xrootd4j 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 xrootd4j.  If not, see http://www.gnu.org/licenses/.
 */
package org.dcache.xrootd.protocol.messages;

import com.google.common.base.CharMatcher;
import io.netty.buffer.ByteBuf;

import static java.nio.charset.StandardCharsets.US_ASCII;
import static org.dcache.xrootd.protocol.XrootdProtocol.kXR_query;

public class QueryRequest extends AbstractXrootdRequest {
    public static final CharMatcher NULL_CHARACTER = CharMatcher.is('\0');
    private final int reqcode;
    private final int fhandle;
    private String args;

    public QueryRequest(ByteBuf buffer) {
        super(buffer, kXR_query);
        reqcode = buffer.getUnsignedShort(4);
        fhandle = buffer.getInt(8);
        int alen = buffer.getInt(20);

        /* The protocol spec doesn't state anything about trailing zeros in args,
         * however the xrdfs client sends zero terminated paths.
         */
        args = NULL_CHARACTER.trimTrailingFrom(buffer.toString(24, alen, US_ASCII));
    }

    public int getReqcode() {
        return reqcode;
    }

    public int getFhandle() {
        return fhandle;
    }

    public String getArgs() {
        return args;
    }

    public void setArgs(String args) {
        this.args = args;
    }

    @Override
    public String toString() {
        return String.format("query[%d,%d,%s]", reqcode, fhandle, args);
    }
}