Added data accessors to help with binary data handling
git-svn-id: https://hyracks.googlecode.com/svn/trunk@79 123451ca-8445-de46-9d55-352943316053
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/IFrameTupleAccessor.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/IFrameTupleAccessor.java
index 88b8768..0b4d3ff 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/IFrameTupleAccessor.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/IFrameTupleAccessor.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
package edu.uci.ics.hyracks.api.comm;
import java.nio.ByteBuffer;
@@ -9,6 +23,8 @@
public int getFieldStartOffset(int tupleIndex, int fIdx);
+ public int getFieldLength(int tupleIndex, int fIdx);
+
public int getTupleEndOffset(int tupleIndex);
public int getTupleStartOffset(int tupleIndex);
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/ArrayTupleBuilder.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/ArrayTupleBuilder.java
index 09d8840..c39023b 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/ArrayTupleBuilder.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/ArrayTupleBuilder.java
@@ -21,8 +21,9 @@
import edu.uci.ics.hyracks.api.comm.IFrameTupleAccessor;
import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
-public class ArrayTupleBuilder {
+public class ArrayTupleBuilder implements IDataOutputProvider {
private final ByteArrayAccessibleOutputStream baaos;
private final DataOutputStream dos;
private final int[] fEndOffsets;
@@ -80,6 +81,7 @@
fEndOffsets[nextField++] = baaos.size();
}
+ @Override
public DataOutput getDataOutput() {
return dos;
}
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameTupleAccessor.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameTupleAccessor.java
index e282d82..7143cfc 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameTupleAccessor.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameTupleAccessor.java
@@ -80,6 +80,11 @@
}
@Override
+ public int getFieldLength(int tupleIndex, int fIdx) {
+ return getFieldEndOffset(tupleIndex, fIdx) - getFieldStartOffset(tupleIndex, fIdx);
+ }
+
+ @Override
public int getFieldSlotsLength() {
return recordDescriptor.getFields().length * 2;
}
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/accessors/ArrayBackedValueStorage.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/accessors/ArrayBackedValueStorage.java
new file mode 100644
index 0000000..5dd1361
--- /dev/null
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/accessors/ArrayBackedValueStorage.java
@@ -0,0 +1,36 @@
+package edu.uci.ics.hyracks.dataflow.common.data.accessors;
+
+import java.io.DataOutput;
+import java.io.DataOutputStream;
+
+import edu.uci.ics.hyracks.dataflow.common.comm.io.ByteArrayAccessibleOutputStream;
+
+public class ArrayBackedValueStorage implements IValueReference, IDataOutputProvider {
+ private final ByteArrayAccessibleOutputStream baaos;
+ private final DataOutputStream dos;
+
+ public ArrayBackedValueStorage() {
+ baaos = new ByteArrayAccessibleOutputStream();
+ dos = new DataOutputStream(baaos);
+ }
+
+ @Override
+ public DataOutput getDataOutput() {
+ return dos;
+ }
+
+ @Override
+ public byte[] getBytes() {
+ return baaos.getByteArray();
+ }
+
+ @Override
+ public int getStartIndex() {
+ return 0;
+ }
+
+ @Override
+ public int getLength() {
+ return baaos.size();
+ }
+}
\ No newline at end of file
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/accessors/FrameTupleFieldValueReference.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/accessors/FrameTupleFieldValueReference.java
new file mode 100644
index 0000000..3cddbac
--- /dev/null
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/accessors/FrameTupleFieldValueReference.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.hyracks.dataflow.common.data.accessors;
+
+import edu.uci.ics.hyracks.api.comm.IFrameTupleAccessor;
+
+public class FrameTupleFieldValueReference implements IValueReference {
+ private IFrameTupleAccessor fta;
+ private int tupleIndex;
+ private int fieldIndex;
+
+ public FrameTupleFieldValueReference() {
+ }
+
+ public void reset(IFrameTupleAccessor fta, int tupleIndex, int fieldIndex) {
+ this.fta = fta;
+ this.tupleIndex = tupleIndex;
+ this.fieldIndex = fieldIndex;
+ }
+
+ @Override
+ public byte[] getBytes() {
+ return fta.getBuffer().array();
+ }
+
+ @Override
+ public int getStartIndex() {
+ return fta.getFieldStartOffset(tupleIndex, fieldIndex);
+ }
+
+ @Override
+ public int getLength() {
+ return fta.getFieldLength(tupleIndex, fieldIndex);
+ }
+}
\ No newline at end of file
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/accessors/IDataOutputProvider.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/accessors/IDataOutputProvider.java
new file mode 100644
index 0000000..fdfe2ec
--- /dev/null
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/accessors/IDataOutputProvider.java
@@ -0,0 +1,21 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.hyracks.dataflow.common.data.accessors;
+
+import java.io.DataOutput;
+
+public interface IDataOutputProvider {
+ public DataOutput getDataOutput();
+}
\ No newline at end of file
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/accessors/IValueReference.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/accessors/IValueReference.java
new file mode 100644
index 0000000..3c005de
--- /dev/null
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/accessors/IValueReference.java
@@ -0,0 +1,23 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.hyracks.dataflow.common.data.accessors;
+
+public interface IValueReference {
+ public byte[] getBytes();
+
+ public int getStartIndex();
+
+ public int getLength();
+}
\ No newline at end of file