Add OGCGeometry::estimateMemorySize API (#157)

Author: mbasmanova

pom.xml

@@ -100,6 +100,7 @@
 		<!-- dependency versions -->
 		<jackson.version>2.6.5</jackson.version>
 		<junit.version>4.12</junit.version>
+		<jol.version>0.2</jol.version>
 
 		<!-- plugin versions -->
 		<compiler.plugin.version>2.3.1</compiler.plugin.version>
@@ -120,6 +121,14 @@
 			<version>${junit.version}</version>
 			<scope>test</scope>
 		</dependency>
+
+		<!-- Test dependencies -->
+		<dependency>
+			<groupId>org.openjdk.jol</groupId>
+			<artifactId>jol-core</artifactId>
+			<version>${jol.version}</version>
+			<scope>test</scope>
+		</dependency>
 	</dependencies>
 
 	<build>

src/main/java/com/esri/core/geometry/AttributeStreamBase.java

@@ -46,6 +46,13 @@ public AttributeStreamBase() {
 	 */
 	public abstract int virtualSize();
 
+	/**
+	 * Returns an estimate of this object size in bytes.
+	 *
+	 * @return Returns an estimate of this object size in bytes.
+	 */
+	public abstract long estimateMemorySize();
+
 	/**
 	 * Returns the Persistence type of the stream.
 	 */

src/main/java/com/esri/core/geometry/AttributeStreamOfDbl.java

@@ -26,9 +26,14 @@
 package com.esri.core.geometry;
 
 import com.esri.core.geometry.VertexDescription.Persistence;
+
 import java.nio.ByteBuffer;
 import java.util.Arrays;
 
+import static com.esri.core.geometry.SizeOf.SIZE_OF_ATTRIBUTE_STREAM_OF_DBL;
+import static com.esri.core.geometry.SizeOf.SIZE_OF_ATTRIBUTE_STREAM_OF_INT32;
+import static com.esri.core.geometry.SizeOf.sizeOfDoubleArray;
+
 final class AttributeStreamOfDbl extends AttributeStreamBase {
 
 	private double[] m_buffer = null;
@@ -173,6 +178,12 @@ public int virtualSize() {
 		return size();
 	}
 
+	@Override
+	public long estimateMemorySize()
+	{
+		return SIZE_OF_ATTRIBUTE_STREAM_OF_DBL + sizeOfDoubleArray(m_buffer.length);
+	}
+
 	// @Override
 	// public void addRange(AttributeStreamBase src, int srcStartIndex, int
 	// count) {

src/main/java/com/esri/core/geometry/AttributeStreamOfFloat.java

@@ -26,10 +26,13 @@
 package com.esri.core.geometry;
 
 import com.esri.core.geometry.VertexDescription.Persistence;
+
 import java.nio.ByteBuffer;
 
-final class AttributeStreamOfFloat extends AttributeStreamBase {
+import static com.esri.core.geometry.SizeOf.SIZE_OF_ATTRIBUTE_STREAM_OF_FLOAT;
+import static com.esri.core.geometry.SizeOf.sizeOfFloatArray;
 
+final class AttributeStreamOfFloat extends AttributeStreamBase {
 	private float[] m_buffer = null;
 	private int m_size;
 
@@ -145,6 +148,12 @@ public int virtualSize() {
 		return size();
 	}
 
+	@Override
+	public long estimateMemorySize()
+	{
+		return SIZE_OF_ATTRIBUTE_STREAM_OF_FLOAT + sizeOfFloatArray(m_buffer.length);
+	}
+
 	@Override
 	public int getPersistence() {
 		return Persistence.enumFloat;

src/main/java/com/esri/core/geometry/AttributeStreamOfInt16.java

@@ -26,10 +26,13 @@
 package com.esri.core.geometry;
 
 import com.esri.core.geometry.VertexDescription.Persistence;
+
 import java.nio.ByteBuffer;
 
-final class AttributeStreamOfInt16 extends AttributeStreamBase {
+import static com.esri.core.geometry.SizeOf.SIZE_OF_ATTRIBUTE_STREAM_OF_INT16;
+import static com.esri.core.geometry.SizeOf.sizeOfShortArray;
 
+final class AttributeStreamOfInt16 extends AttributeStreamBase {
 	private short[] m_buffer = null;
 	private int m_size;
 
@@ -145,6 +148,12 @@ public int virtualSize() {
 		return size();
 	}
 
+	@Override
+	public long estimateMemorySize()
+	{
+		return SIZE_OF_ATTRIBUTE_STREAM_OF_INT16 + sizeOfShortArray(m_buffer.length);
+	}
+
 	@Override
 	public int getPersistence() {
 		return Persistence.enumInt16;

src/main/java/com/esri/core/geometry/AttributeStreamOfInt32.java

@@ -26,11 +26,14 @@
 package com.esri.core.geometry;
 
 import com.esri.core.geometry.VertexDescription.Persistence;
+
 import java.nio.ByteBuffer;
 import java.util.Arrays;
 
-final class AttributeStreamOfInt32 extends AttributeStreamBase {
+import static com.esri.core.geometry.SizeOf.SIZE_OF_ATTRIBUTE_STREAM_OF_INT32;
+import static com.esri.core.geometry.SizeOf.sizeOfIntArray;
 
+final class AttributeStreamOfInt32 extends AttributeStreamBase {
 	private int[] m_buffer = null;
 	private int m_size;
 
@@ -158,6 +161,12 @@ public int virtualSize() {
 		return size();
 	}
 
+	@Override
+	public long estimateMemorySize()
+	{
+		return SIZE_OF_ATTRIBUTE_STREAM_OF_INT32 + sizeOfIntArray(m_buffer.length);
+	}
+
 	@Override
 	public int getPersistence() {
 		return Persistence.enumInt32;

src/main/java/com/esri/core/geometry/AttributeStreamOfInt64.java

@@ -26,10 +26,13 @@
 package com.esri.core.geometry;
 
 import com.esri.core.geometry.VertexDescription.Persistence;
+
 import java.nio.ByteBuffer;
 
-final class AttributeStreamOfInt64 extends AttributeStreamBase {
+import static com.esri.core.geometry.SizeOf.SIZE_OF_ATTRIBUTE_STREAM_OF_INT64;
+import static com.esri.core.geometry.SizeOf.sizeOfLongArray;
 
+final class AttributeStreamOfInt64 extends AttributeStreamBase {
 	private long[] m_buffer = null;
 	private int m_size;
 
@@ -145,6 +148,12 @@ public int virtualSize() {
 		return size();
 	}
 
+	@Override
+	public long estimateMemorySize()
+	{
+		return SIZE_OF_ATTRIBUTE_STREAM_OF_INT64 + sizeOfLongArray(m_buffer.length);
+	}
+
 	@Override
 	public int getPersistence() {
 		return Persistence.enumInt64;

src/main/java/com/esri/core/geometry/AttributeStreamOfInt8.java

@@ -26,8 +26,12 @@
 package com.esri.core.geometry;
 
 import com.esri.core.geometry.VertexDescription.Persistence;
+
 import java.nio.ByteBuffer;
 
+import static com.esri.core.geometry.SizeOf.SIZE_OF_ATTRIBUTE_STREAM_OF_INT8;
+import static com.esri.core.geometry.SizeOf.sizeOfByteArray;
+
 final class AttributeStreamOfInt8 extends AttributeStreamBase {
 
 	private byte[] m_buffer = null;
@@ -152,6 +156,12 @@ public int virtualSize() {
 		return size();
 	}
 
+	@Override
+	public long estimateMemorySize()
+	{
+		return SIZE_OF_ATTRIBUTE_STREAM_OF_INT8 + sizeOfByteArray(m_buffer.length);
+	}
+
 	@Override
 	public int getPersistence() {
 		return Persistence.enumInt8;

src/main/java/com/esri/core/geometry/Envelope.java

@@ -25,9 +25,11 @@
 
 package com.esri.core.geometry;
 
+import com.esri.core.geometry.VertexDescription.Semantics;
+
 import java.io.Serializable;
 
-import com.esri.core.geometry.VertexDescription.Semantics;
+import static com.esri.core.geometry.SizeOf.SIZE_OF_ENVELOPE;
 
 /**
  * An envelope is an axis-aligned rectangle.
@@ -445,6 +447,12 @@ public int getDimension() {
 		return 2;
 	}
 
+	@Override
+	public long estimateMemorySize()
+	{
+		return SIZE_OF_ENVELOPE + m_envelope.estimateMemorySize() + estimateMemorySize(m_attributes);
+	}
+
 	@Override
 	public void queryEnvelope(Envelope env) {
 		copyTo(env);

src/main/java/com/esri/core/geometry/Envelope2D.java

@@ -28,12 +28,14 @@
 import java.io.ObjectStreamException;
 import java.io.Serializable;
 
+import static com.esri.core.geometry.SizeOf.SIZE_OF_ENVELOPE2D;
+
 /**
  * An axis parallel 2-dimensional rectangle.
  */
 public final class Envelope2D implements Serializable {
 	private static final long serialVersionUID = 1L;
-	
+
 	private final static int XLESSXMIN = 1;
 	// private final int XGREATERXMAX = 2;
 	private final static int YLESSYMIN = 4;
@@ -79,6 +81,11 @@ public Envelope2D(double _xmin, double _ymin, double _xmax, double _ymax) {
 	public Envelope2D(Envelope2D other) {
 		setCoords(other);
 	}
+
+	public int estimateMemorySize()
+	{
+		return SIZE_OF_ENVELOPE2D;
+	}
 
 	public void setCoords(double _x, double _y) {
 		xmin = _x;