Example usage for java.io DataInput readInt

Introduction

In this page you can find the example usage for java.io DataInput readInt.

Prototype

int readInt() throws IOException;

Source Link

Document

Reads four input bytes and returns an int value.

Usage

From source file:com.chinamobile.bcbsp.graph.EdgeManager.java

@Override
public void readFields(DataInput in) throws IOException {
    this.currentEdgesLength = in.readInt();
    if (this.currentEdgesLength < 0 || this.edgelist == null) {
        return;//from  w ww  .  ja  v  a2  s  .c om
    }
    // Note Clear The Edges Info Of Last Instance.
    this.edgelist.clear();
    for (int i = 0; i < this.currentEdgesLength; i++) {
        this.currentEdge = getEdgeFromPool(i);
        this.currentEdge.readFields(in);
        this.edgelist.add(this.currentEdge);
    }
    this.currentEdgesLength = -1;
    this.edgelist = null;
}

From source file:org.apache.hadoop.hbase.master.AssignmentPlan.java

@Override
public void readFields(DataInput in) throws IOException {
    int version = in.readInt();
    if (version != VERSION) {
        throw new IOException("The version mismatch for the assignment plan. " + "The expected versioin is "
                + VERSION + " but the verion from the assigment plan is " + version);
    }/*  w  ww. j  av a 2s.  c o m*/
    // read the favoredAssignmentMap size
    int assignmentMapSize = in.readInt();
    for (int i = 0; i < assignmentMapSize; i++) {
        // read each region info
        HRegionInfo region = new HRegionInfo();
        region.readFields(in);
        // read the size of favored server list
        int serverListSize = in.readInt();
        List<HServerAddress> serverList = new ArrayList<HServerAddress>(serverListSize);
        for (int j = 0; j < serverListSize; j++) {
            HServerAddress addr = new HServerAddress();
            addr.readFields(in);
            serverList.add(addr);
        }

        // add the assignment to favoredAssignmentMap
        this.assignmentMap.put(region, serverList);
    }
}

From source file:edu.umn.cs.spatialHadoop.core.ZCurvePartitioner.java

@Override
public void readFields(DataInput in) throws IOException {
    mbr.readFields(in);//from ww  w. java  2s. c  o m
    int partitionCount = in.readInt();
    zSplits = new long[partitionCount];
    int bufferLength = 8 * partitionCount;
    byte[] buffer = new byte[bufferLength];
    in.readFully(buffer);
    ByteBuffer bbuffer = ByteBuffer.wrap(buffer);
    for (int i = 0; i < partitionCount; i++) {
        zSplits[i] = bbuffer.getLong();
    }
    if (bbuffer.hasRemaining())
        throw new RuntimeException("Error reading STR partitioner");
}

From source file:com.nearinfinity.blur.mapreduce.BlurTask.java

private String readString(DataInput input) throws IOException {
    int length = input.readInt();
    byte[] buf = new byte[length];
    input.readFully(buf);//  ww w  . j  av  a2  s.com
    return new String(buf);
}

From source file:edu.umn.cs.spatialHadoop.core.OGCShape.java

@Override
public void readFields(DataInput in) throws IOException {
    int size = in.readInt();
    byte[] bytes = new byte[size];
    in.readFully(bytes);/*from w  w  w .  j a  v  a 2 s  . c om*/
    geom = OGCGeometry.fromBinary(ByteBuffer.wrap(bytes));
    size = in.readInt();
    if (size == -1) {
        extra = null;
    } else {
        bytes = new byte[size];
        in.readFully(bytes);
        extra = new String(bytes);
    }
}

From source file:org.godhuli.rhipe.RHBytesWritable.java

public void readIntFields(final DataInput in) throws IOException {
    setSize(0); // clear the old data
    final int d = in.readInt();
    setSize(d);//  w w  w  .j  a v  a 2s  .  c  om
    in.readFully(bytes, 0, size);
}

From source file:org.gradoop.common.model.impl.properties.PropertyList.java

@Override
public void readFields(DataInput dataInput) throws IOException {
    int propertyCount = dataInput.readInt();
    properties = Lists.newArrayListWithCapacity(propertyCount);
    for (int i = 0; i < propertyCount; i++) {
        Property p = new Property();
        p.readFields(dataInput);//www  . ja  v a 2s .com
        properties.add(p);
    }
}

From source file:com.chinamobile.bcbsp.action.Directive.java

@Override
public void readFields(DataInput in) throws IOException {
    this.faultSSStep = in.readInt();
    this.timestamp = in.readLong();
    int t = in.readInt();
    if (Directive.Type.Request.value() == t) {
        this.type = Directive.Type.Request;
        int length = WritableUtils.readVInt(in);
        if (length > 0) {
            this.actionList = new ArrayList<WorkerManagerAction>();
            for (int i = 0; i < length; ++i) {
                WorkerManagerAction.ActionType actionType = WritableUtils.readEnum(in,
                        WorkerManagerAction.ActionType.class);
                WorkerManagerAction action = WorkerManagerAction.createAction(actionType);
                action.readFields(in);/*from w w w .j  ava2s. c  o  m*/
                this.actionList.add(action);
            }
        } else {
            this.actionList = null;
        }

        this.workerManagersName = WritableUtils.readCompressedStringArray(in);
    } else if (Directive.Type.Response.value() == t) {
        this.type = Directive.Type.Response;
        this.status = new WorkerManagerStatus();
        this.status.readFields(in);
    } else {
        throw new IllegalStateException("Wrong directive type:" + t);
    }

    /* Zhicheng Liu added */
    this.migrateSSStep = in.readInt();

}

From source file:org.apache.rya.accumulo.mr.RyaStatementWritable.java

/**
 * Read part of a statement from an input stream.
 * @param dataInput Stream for reading serialized statements.
 * @return The next individual field, as a byte array.
 * @throws IOException if reading from the stream fails.
 *///from   ww w.  ja v a2s. co  m
protected byte[] read(DataInput dataInput) throws IOException {
    if (dataInput.readBoolean()) {
        int len = dataInput.readInt();
        byte[] bytes = new byte[len];
        dataInput.readFully(bytes);
        return bytes;
    } else {
        return null;
    }
}

From source file:org.apache.nutch.protocol.Content.java

public final void readFields(DataInput in) throws IOException {
    metadata.clear();/*from www  .  j ava 2  s.c om*/
    int sizeOrVersion = in.readInt();
    if (sizeOrVersion < 0) { // version
        version = sizeOrVersion;
        switch (version) {
        case VERSION:
            url = Text.readString(in);
            base = Text.readString(in);

            content = new byte[in.readInt()];
            in.readFully(content);

            contentType = Text.readString(in);
            metadata.readFields(in);
            break;
        default:
            throw new VersionMismatchException((byte) VERSION, (byte) version);
        }
    } else { // size
        byte[] compressed = new byte[sizeOrVersion];
        in.readFully(compressed, 0, compressed.length);
        ByteArrayInputStream deflated = new ByteArrayInputStream(compressed);
        DataInput inflater = new DataInputStream(new InflaterInputStream(deflated));
        readFieldsCompressed(inflater);
    }
}