Examples with DataInputStream java.io.DataInputStream used on opensource projects

Example 21 with DataInputStream

use of java.io.DataInputStream in project pinot by linkedin.

the class AggregationPhaseMapOutputKey method fromBytes.

public static AggregationPhaseMapOutputKey fromBytes(byte[] buffer) throws IOException {
    DataInputStream dis = new DataInputStream(new ByteArrayInputStream(buffer));
    int length;
    int size;
    List<String> dimensions = new ArrayList<>();
    byte[] bytes;
    // time
    long time = dis.readLong();
    // dimensions size
    size = dis.readInt();
    // dimension value
    for (int i = 0; i < size; i++) {
        length = dis.readInt();
        bytes = new byte[length];
        dis.read(bytes);
        dimensions.add(new String(bytes));
    }
    AggregationPhaseMapOutputKey wrapper;
    wrapper = new AggregationPhaseMapOutputKey(time, dimensions);
    return wrapper;
}

Example 22 with DataInputStream

use of java.io.DataInputStream in project pinot by linkedin.

the class AggregationPhaseMapOutputValue method fromBytes.

public static AggregationPhaseMapOutputValue fromBytes(byte[] buffer, List<MetricType> metricTypes) throws IOException {
    DataInputStream dis = new DataInputStream(new ByteArrayInputStream(buffer));
    int length;
    // metric values
    length = dis.readInt();
    Number[] metricValues = new Number[length];
    for (int i = 0; i < length; i++) {
        MetricType metricType = metricTypes.get(i);
        switch(metricType) {
            case SHORT:
                metricValues[i] = dis.readShort();
                break;
            case LONG:
                metricValues[i] = dis.readLong();
                break;
            case INT:
                metricValues[i] = dis.readInt();
                break;
            case FLOAT:
                metricValues[i] = dis.readFloat();
                break;
            case DOUBLE:
                metricValues[i] = dis.readDouble();
                break;
        }
    }
    AggregationPhaseMapOutputValue wrapper;
    wrapper = new AggregationPhaseMapOutputValue(metricValues, metricTypes);
    return wrapper;
}

Example 23 with DataInputStream

use of java.io.DataInputStream in project pinot by linkedin.

the class TopKPhaseMapOutputValue method fromBytes.

public static TopKPhaseMapOutputValue fromBytes(byte[] buffer, List<MetricType> metricTypes) throws IOException {
    DataInputStream dis = new DataInputStream(new ByteArrayInputStream(buffer));
    int length;
    // metric values
    length = dis.readInt();
    Number[] metricValues = new Number[length];
    for (int i = 0; i < length; i++) {
        MetricType metricType = metricTypes.get(i);
        switch(metricType) {
            case SHORT:
                metricValues[i] = dis.readShort();
                break;
            case LONG:
                metricValues[i] = dis.readLong();
                break;
            case INT:
                metricValues[i] = dis.readInt();
                break;
            case FLOAT:
                metricValues[i] = dis.readFloat();
                break;
            case DOUBLE:
                metricValues[i] = dis.readDouble();
                break;
        }
    }
    TopKPhaseMapOutputValue wrapper;
    wrapper = new TopKPhaseMapOutputValue(metricValues, metricTypes);
    return wrapper;
}

Example 24 with DataInputStream

use of java.io.DataInputStream in project hadoop by apache.

the class LeveldbRMStateStore method loadDelegationToken.

private RMDelegationTokenIdentifierData loadDelegationToken(byte[] data) throws IOException {
    RMDelegationTokenIdentifierData tokenData = new RMDelegationTokenIdentifierData();
    DataInputStream in = new DataInputStream(new ByteArrayInputStream(data));
    try {
        tokenData.readFields(in);
    } finally {
        IOUtils.cleanup(LOG, in);
    }
    return tokenData;
}

Example 25 with DataInputStream

use of java.io.DataInputStream in project hadoop by apache.

the class LeveldbRMStateStore method loadDelegationKey.

private DelegationKey loadDelegationKey(byte[] data) throws IOException {
    DelegationKey key = new DelegationKey();
    DataInputStream in = new DataInputStream(new ByteArrayInputStream(data));
    try {
        key.readFields(in);
    } finally {
        IOUtils.cleanup(LOG, in);
    }
    return key;
}