niagara-ax/modules/cfr_output/com/tridium/platform/daemon/ConsoleInputStream.java

/*
 * Decompiled with CFR 0.152.
 * 
 * Could not load the following classes:
 *  javax.baja.log.Log
 */
package com.tridium.platform.daemon;

import java.io.EOFException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InterruptedIOException;
import javax.baja.log.Log;

/*
 * Illegal identifiers - consider using --renameillegalidents true
 */
public class ConsoleInputStream
extends InputStream {
    public static Log log = Log.getLog((String)"platform.console");
    private InputStream in;
    private byte[] buf;
    private int bufSize;
    private int pendingRead;
    private int nextRead;

    public static ConsoleInputStream make(InputStream inputStream) {
        return inputStream == null ? null : new ConsoleInputStream(inputStream);
    }

    public void close() throws IOException {
        this.in.close();
        this.in = null;
    }

    public long skip(long l) throws IOException {
        if (this.in == null) {
            throw new IOException("skip() on closed stream");
        }
        if (!this.checkBuffer()) {
            return 0L;
        }
        long l2 = this.bufSize - this.nextRead;
        long l3 = l <= l2 ? l : l2;
        this.nextRead = (int)((long)this.nextRead + l3);
        return l3;
    }

    public int read(byte[] byArray) throws IOException {
        return this.read(byArray, 0, byArray.length);
    }

    public int read(byte[] byArray, int n, int n2) throws IOException {
        int n3;
        if (this.in == null) {
            throw new IOException("read() on closed stream");
        }
        if (!this.checkBuffer()) {
            this.throwEOFException("error in checkBuffer");
        }
        int n4 = n2 <= (n3 = this.bufSize - this.nextRead) ? n2 : n3;
        System.arraycopy(this.buf, this.nextRead, byArray, n, n4);
        this.nextRead += n4;
        return n4;
    }

    public int read() throws IOException {
        if (this.in == null) {
            throw new IOException("read() on closed stream");
        }
        if (!this.checkBuffer()) {
            return -1;
        }
        int n = this.buf[this.nextRead] & 0xFF;
        ++this.nextRead;
        return n;
    }

    private final void throwEOFException(String string) throws EOFException {
        EOFException eOFException = new EOFException();
        log.trace(string, (Throwable)eOFException);
        throw eOFException;
    }

    /*
     * Unable to fully structure code
     */
    private final boolean checkBuffer() throws IOException {
        if (this.in != null) ** GOTO lbl43
        throw new IOException("checkBuffer() on closed stream");
lbl-1000:
        // 1 sources

        {
            if (this.pendingRead == 0) {
                var1_1 = this.in.read();
                if (var1_1 == -1) {
                    this.throwEOFException("invalid buflength byte 0");
                }
                this.pendingRead = var1_1 << 24;
                try {
                    var1_1 = this.in.read();
                    if (var1_1 == -1) {
                        this.throwEOFException("invalid buflength byte 1");
                    }
                    this.pendingRead += var1_1 << 16;
                    var1_1 = this.in.read();
                    if (var1_1 == -1) {
                        this.throwEOFException("invalid buflength byte 2");
                    }
                    this.pendingRead += var1_1 << 8;
                    var1_1 = this.in.read();
                    if (var1_1 == -1) {
                        this.throwEOFException("invalid buflength byte 3");
                    }
                    this.pendingRead += var1_1;
                }
                catch (InterruptedIOException var2_2) {
                    this.pendingRead = 0;
                    throw new IOException("Timeout while reading buffer size");
                }
            }
            if (this.pendingRead > 1024) {
                this.bufSize = 0;
                this.nextRead = 0;
                this.pendingRead = 0;
                throw new IOException("Improper buffer size (" + this.bufSize + "), stream probably corrupt");
            }
            if (this.pendingRead > 0) {
                this.bufSize = this.in.read(this.buf, 0, this.pendingRead);
                if (this.bufSize < 0) {
                    this.bufSize = 0;
                    this.nextRead = 0;
                    return false;
                }
                this.pendingRead -= this.bufSize;
                this.nextRead = 0;
                return true;
            }
            if (this.pendingRead >= 0) continue;
            this.bufSize = 0;
            this.nextRead = 0;
            throw new IOException("Improper buffer size, stream probably corrupt");
lbl43:
            // 2 sources

            ** while (this.nextRead >= this.bufSize)
        }
lbl44:
        // 1 sources

        return true;
    }

    private final /* synthetic */ void this() {
        this.buf = new byte[1024];
        this.bufSize = 0;
        this.pendingRead = 0;
        this.nextRead = 0;
    }

    private ConsoleInputStream(InputStream inputStream) {
        this.this();
        this.in = inputStream;
    }
}