Example usage for java.io DataInput readUTF

Introduction

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

Prototype

String readUTF() throws IOException;

Source Link

Document

Reads in a string that has been encoded using a modified UTF-8 format.

Usage

From source file:org.jactr.io.antlr3.serialization.Serializer.java

static public CommonTree read(DataInput input) throws IOException {
    int nodeType = input.readInt();
    String nodeText = input.readUTF();

    int tokenType = input.readInt();
    String tokenText = input.readUTF();
    int tokenStart = input.readInt();
    int tokenStop = input.readInt();
    int tokenLine = input.readInt();
    int tokenLineOffset = input.readInt();

    CommonToken token = new CommonToken(tokenType, tokenText);
    token.setStartIndex(tokenStart);/*w w  w .  j  a v  a 2s. c  om*/
    token.setStopIndex(tokenStop);
    token.setLine(tokenLine);
    token.setCharPositionInLine(tokenLineOffset);

    DetailedCommonTree node = (DetailedCommonTree) _adaptor.create(nodeType, token, nodeText);
    node.setTokenStartIndex(input.readInt());
    node.setTokenStopIndex(input.readInt());

    node.setStartOffset(input.readInt());
    node.setEndOffset(input.readInt());

    String url = input.readUTF();
    if (url.length() != 0)
        try {
            node.setSource(new URL(url));
        } catch (Exception e) {

        }

    int children = input.readInt();
    for (int i = 0; i < children; i++)
        node.addChild(read(input));
    return node;
}

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From source file:org.kiji.schema.mapreduce.KijiDelete.java

/**
 * During deserialization, read attributes that may have been NULL while serializing.
 *
 * @param in Interface to input stream.//  w  w  w. java  2 s . com
 * @param type The class to read.
 * @return An object of "type" or null.
 * @throws IOException if an I/O error occurs.
 */
private Object readOptionalValue(DataInput in, Class<?> type) throws IOException {
    String input = in.readUTF();
    if (input.equals("NULL")) {
        return null;
    }
    if (KijiDeleteOperation.class == type) {
        return KijiDeleteOperation.valueOf(input);
    }
    if (Long.class == type) {
        return new Long(input);
    }
    return input;
}

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From source file:org.kiji.schema.mapreduce.KijiIncrement.java

/** {@inheritDoc} */
@Override/*  ww w.j a v a  2s.  c  o  m*/
public void readFields(DataInput in) throws IOException {
    // EntityId.
    final byte[] bytes = new byte[in.readInt()];
    in.readFully(bytes);
    mEntityId = new RawEntityId(bytes);

    // Family/Qualifier/Timestamp.
    mFamily = in.readUTF();
    mQualifier = in.readUTF();
    mAmount = in.readLong();
}

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From source file:org.kiji.schema.mapreduce.KijiPut.java

/** {@inheritDoc} */
@Override//from   w  ww . j a  v  a2 s  .c  o  m
public void readFields(DataInput in) throws IOException {
    // EntityId.
    final byte[] bytes = new byte[in.readInt()];
    in.readFully(bytes);
    mEntityId = new HBaseEntityId(bytes);

    // Family/Qualifier/Timestamp.
    mFamily = in.readUTF();
    mQualifier = in.readUTF();
    mTimestamp = in.readLong();

    // Avro.
    final Schema schema = new Schema.Parser().parse(in.readUTF());
    final KijiCellDecoderFactory decoderFactory = new SpecificCellDecoderFactory(null);
    final KijiCellDecoder<?> decoder = decoderFactory.create(schema, KijiCellFormat.NONE);
    final byte[] cellData = new byte[in.readInt()];
    in.readFully(cellData);
    mCell = decoder.decode(cellData, null);
}

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From source file:org.lilyproject.repository.impl.hbase.LilyFieldSingleColumnValueFilter.java

public void readFields(final DataInput in) throws IOException {
    this.columnFamily = Bytes.readByteArray(in);
    if (this.columnFamily.length == 0) {
        this.columnFamily = null;
    }//from   w w w  .j a va 2  s  . co  m
    this.columnQualifier = Bytes.readByteArray(in);
    if (this.columnQualifier.length == 0) {
        this.columnQualifier = null;
    }
    this.compareOp = CompareFilter.CompareOp.valueOf(in.readUTF());
    this.comparator = (WritableByteArrayComparable) HbaseObjectWritable.readObject(in, null);
    this.foundColumn = in.readBoolean();
    this.matchedColumn = in.readBoolean();
    this.filterIfMissing = in.readBoolean();
    this.latestVersionOnly = in.readBoolean();
}

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From source file:org.mitre.la.mapred.io.DenseVectorWritable.java

/**
 * Deserialize the fields of this object from <code>in</code>.
 *
 * @param in <code>DataInput</code> to deseriablize this object from.
 * @throws IOException//from   w ww.  j a va 2  s .  c o  m
 */
@Override
public void readFields(DataInput in) throws IOException {
    in.readByte();
    String label = in.readUTF();
    int length = in.readInt();
    double[] v = new double[length];
    for (int i = 0; i < length; i++) {
        v[i] = in.readDouble();
    }
    this.dv = new DenseVector(label, v);
}

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From source file:org.netbeans.nbbuild.VerifyClassLinkageForIISI.java

public static Set<String> dependencies(byte[] data) throws IOException {
    Set<String> result = new TreeSet<String>();
    DataInput input = new DataInputStream(new ByteArrayInputStream(data));
    skip(input, 8); // magic, minor_version, major_version
    int size = input.readUnsignedShort() - 1; // constantPoolCount
    String[] utf8Strings = new String[size];
    boolean[] isClassName = new boolean[size];
    boolean[] isDescriptor = new boolean[size];
    for (int i = 0; i < size; i++) {
        byte tag = input.readByte();
        switch (tag) {
        case 1: // CONSTANT_Utf8
            utf8Strings[i] = input.readUTF();
            break;
        case 7: // CONSTANT_Class
            int index = input.readUnsignedShort() - 1;
            if (index >= size) {
                throw new IOException("@" + i + ": CONSTANT_Class_info.name_index " + index
                        + " too big for size of pool " + size);
            }//from  w  w w .j a v  a  2  s.  c om
            //log("Class reference at " + index, Project.MSG_DEBUG);
            isClassName[index] = true;
            break;
        case 3: // CONSTANT_Integer
        case 4: // CONSTANT_Float
        case 9: // CONSTANT_Fieldref
        case 10: // CONSTANT_Methodref
        case 11: // CONSTANT_InterfaceMethodref
            skip(input, 4);
            break;
        case 12: // CONSTANT_NameAndType
            skip(input, 2);
            index = input.readUnsignedShort() - 1;
            if (index >= size || index < 0) {
                throw new IOException("@" + i + ": CONSTANT_NameAndType_info.descriptor_index " + index
                        + " too big for size of pool " + size);
            }
            isDescriptor[index] = true;
            break;
        case 8: // CONSTANT_String
            skip(input, 2);
            break;
        case 5: // CONSTANT_Long
        case 6: // CONSTANT_Double
            skip(input, 8);
            i++; // weirdness in spec
            break;
        default:
            throw new IOException("Unrecognized constant pool tag " + tag + " at index " + i
                    + "; running UTF-8 strings: " + Arrays.asList(utf8Strings));
        }
    }
    //task.log("UTF-8 strings: " + Arrays.asList(utf8Strings), Project.MSG_DEBUG);
    for (int i = 0; i < size; i++) {
        String s = utf8Strings[i];
        final Set<String> classNameSet = extractClassName(s);

        if (s != null) {
            if (CollectionUtils.isNotEmpty(classNameSet)) {
                result.addAll(classNameSet);
            }

        }

    }
    return result;
}

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From source file:org.springframework.session.data.gemfire.AbstractGemFireOperationsSessionRepositoryTest.java

@Test
public void sessionFromData() throws Exception {
    final long expectedCreationTime = 1L;
    final long expectedLastAccessedTime = 2L;

    final int expectedMaxInactiveIntervalInSeconds = (int) TimeUnit.HOURS.toSeconds(6);

    final String expectedPrincipalName = "jblum";

    DataInput mockDataInput = mock(DataInput.class);

    given(mockDataInput.readUTF()).willReturn("2").willReturn(expectedPrincipalName);
    given(mockDataInput.readLong()).willReturn(expectedCreationTime).willReturn(expectedLastAccessedTime);
    given(mockDataInput.readInt()).willReturn(expectedMaxInactiveIntervalInSeconds);

    @SuppressWarnings("serial")
    AbstractGemFireOperationsSessionRepository.GemFireSession session = new AbstractGemFireOperationsSessionRepository.GemFireSession(
            "1") {
        @Override//w w  w .  j a  v a2 s  .  c  o  m
        @SuppressWarnings("unchecked")
        <T> T readObject(DataInput in) throws ClassNotFoundException, IOException {
            assertThat(in).isNotNull();

            AbstractGemFireOperationsSessionRepository.GemFireSessionAttributes sessionAttributes = new AbstractGemFireOperationsSessionRepository.GemFireSessionAttributes();

            sessionAttributes.setAttribute("attrOne", "testOne");
            sessionAttributes.setAttribute("attrTwo", "testTwo");

            return (T) sessionAttributes;
        }
    };

    session.fromData(mockDataInput);

    Set<String> expectedAttributeNames = asSet("attrOne", "attrTwo",
            FindByIndexNameSessionRepository.PRINCIPAL_NAME_INDEX_NAME);

    assertThat(session.getId()).isEqualTo("2");
    assertThat(session.getCreationTime()).isEqualTo(expectedCreationTime);
    assertThat(session.getLastAccessedTime()).isEqualTo(expectedLastAccessedTime);
    assertThat(session.getMaxInactiveIntervalInSeconds()).isEqualTo(expectedMaxInactiveIntervalInSeconds);
    assertThat(session.getPrincipalName()).isEqualTo(expectedPrincipalName);
    assertThat(session.getAttributeNames().size()).isEqualTo(3);
    assertThat(session.getAttributeNames().containsAll(expectedAttributeNames)).isTrue();
    assertThat(String.valueOf(session.getAttribute("attrOne"))).isEqualTo("testOne");
    assertThat(String.valueOf(session.getAttribute("attrTwo"))).isEqualTo("testTwo");
    assertThat(String.valueOf(session.getAttribute(FindByIndexNameSessionRepository.PRINCIPAL_NAME_INDEX_NAME)))
            .isEqualTo(expectedPrincipalName);

    verify(mockDataInput, times(2)).readUTF();
    verify(mockDataInput, times(2)).readLong();
    verify(mockDataInput, times(2)).readInt();
}

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From source file:org.springframework.session.data.gemfire.AbstractGemFireOperationsSessionRepositoryTest.java

@Test
public void sessionAttributesFromData() throws Exception {
    final DataInput mockDataInput = mock(DataInput.class);

    given(mockDataInput.readInt()).willReturn(2);
    given(mockDataInput.readUTF()).willReturn("attrOne").willReturn("attrTwo");

    @SuppressWarnings("serial")
    AbstractGemFireOperationsSessionRepository.GemFireSessionAttributes sessionAttributes = new AbstractGemFireOperationsSessionRepository.GemFireSessionAttributes() {
        private int count = 0;

        @Override/*w ww  . ja  va 2 s.  c o  m*/
        @SuppressWarnings("unchecked")
        <T> T readObject(DataInput in) throws ClassNotFoundException, IOException {
            assertThat(in).isSameAs(mockDataInput);
            return (T) Arrays.asList("testOne", "testTwo").get(count++);
        }
    };

    assertThat(sessionAttributes.getAttributeNames().isEmpty()).isTrue();

    sessionAttributes.fromData(mockDataInput);

    assertThat(sessionAttributes.getAttributeNames().size()).isEqualTo(2);
    assertThat(sessionAttributes.getAttributeNames().containsAll(asSet("attrOne", "attrTwo"))).isTrue();
    assertThat(String.valueOf(sessionAttributes.getAttribute("attrOne"))).isEqualTo("testOne");
    assertThat(String.valueOf(sessionAttributes.getAttribute("attrTwo"))).isEqualTo("testTwo");

    verify(mockDataInput, times(1)).readInt();
    verify(mockDataInput, times(2)).readUTF();
}

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From source file:org.springframework.session.data.gemfire.AbstractGemFireOperationsSessionRepositoryTest.java

@Test
public void sessionAttributesFromDelta() throws Exception {
    final DataInput mockDataInput = mock(DataInput.class);

    given(mockDataInput.readInt()).willReturn(2);
    given(mockDataInput.readUTF()).willReturn("attrOne").willReturn("attrTwo");

    @SuppressWarnings("serial")
    AbstractGemFireOperationsSessionRepository.GemFireSessionAttributes sessionAttributes = new AbstractGemFireOperationsSessionRepository.GemFireSessionAttributes() {
        private int count = 0;

        @Override/*from w w  w  .  j  a v a 2 s.  co m*/
        @SuppressWarnings("unchecked")
        <T> T readObject(DataInput in) throws ClassNotFoundException, IOException {
            assertThat(in).isSameAs(mockDataInput);
            return (T) Arrays.asList("testOne", "testTwo", "testThree").get(count++);
        }
    };

    sessionAttributes.setAttribute("attrOne", "one");
    sessionAttributes.setAttribute("attrTwo", "two");

    assertThat(sessionAttributes.getAttributeNames().size()).isEqualTo(2);
    assertThat(sessionAttributes.getAttributeNames().containsAll(asSet("attrOne", "attrTwo"))).isTrue();
    assertThat(String.valueOf(sessionAttributes.getAttribute("attrOne"))).isEqualTo("one");
    assertThat(String.valueOf(sessionAttributes.getAttribute("attrTwo"))).isEqualTo("two");
    assertThat(sessionAttributes.hasDelta()).isTrue();

    sessionAttributes.fromDelta(mockDataInput);

    assertThat(sessionAttributes.getAttributeNames().size()).isEqualTo(2);
    assertThat(sessionAttributes.getAttributeNames().containsAll(asSet("attrOne", "attrTwo"))).isTrue();
    assertThat(String.valueOf(sessionAttributes.getAttribute("attrOne"))).isEqualTo("testOne");
    assertThat(String.valueOf(sessionAttributes.getAttribute("attrTwo"))).isEqualTo("testTwo");
    assertThat(sessionAttributes.hasDelta()).isFalse();

    verify(mockDataInput, times(1)).readInt();
    verify(mockDataInput, times(2)).readUTF();
    reset(mockDataInput);

    given(mockDataInput.readInt()).willReturn(1);
    given(mockDataInput.readUTF()).willReturn("attrTwo");

    sessionAttributes.setAttribute("attrOne", "one");
    sessionAttributes.setAttribute("attrTwo", "two");

    assertThat(sessionAttributes.getAttributeNames().size()).isEqualTo(2);
    assertThat(sessionAttributes.getAttributeNames().containsAll(asSet("attrOne", "attrTwo"))).isTrue();
    assertThat(String.valueOf(sessionAttributes.getAttribute("attrOne"))).isEqualTo("one");
    assertThat(String.valueOf(sessionAttributes.getAttribute("attrTwo"))).isEqualTo("two");
    assertThat(sessionAttributes.hasDelta()).isTrue();

    sessionAttributes.fromDelta(mockDataInput);

    assertThat(sessionAttributes.getAttributeNames().size()).isEqualTo(2);
    assertThat(sessionAttributes.getAttributeNames().containsAll(asSet("attrOne", "attrTwo"))).isTrue();
    assertThat(String.valueOf(sessionAttributes.getAttribute("attrOne"))).isEqualTo("one");
    assertThat(String.valueOf(sessionAttributes.getAttribute("attrTwo"))).isEqualTo("testThree");
    assertThat(sessionAttributes.hasDelta()).isTrue();

    verify(mockDataInput, times(1)).readInt();
    verify(mockDataInput, times(1)).readUTF();
}

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