diff options
| -rw-r--r-- | src/java/com/jogamp/common/util/IntIntHashMap.java | 124 | ||||
| -rw-r--r-- | src/junit/com/jogamp/common/util/IntIntHashMapTest.java | 117 | ||||
| -rw-r--r-- | src/junit/com/jogamp/common/util/IntObjectHashMapTest.java | 210 |
3 files changed, 440 insertions, 11 deletions
diff --git a/src/java/com/jogamp/common/util/IntIntHashMap.java b/src/java/com/jogamp/common/util/IntIntHashMap.java index f449a95..487914b 100644 --- a/src/java/com/jogamp/common/util/IntIntHashMap.java +++ b/src/java/com/jogamp/common/util/IntIntHashMap.java @@ -31,6 +31,10 @@ */ package com.jogamp.common.util; +import com.jogamp.common.JogampRuntimeException; +import java.lang.reflect.Constructor; +import java.lang.reflect.Method; +import java.util.ArrayList; import java.util.Arrays; import java.util.Iterator; @@ -45,6 +49,7 @@ import java.util.Iterator; * * @author Michael Bien * @author Simon Goller + * @author Sven Gothel * * @see IntObjectHashMap * @see IntLongHashMap @@ -52,7 +57,7 @@ import java.util.Iterator; * @see LongLongHashMap * @see LongIntHashMap */ -public class /*name*/IntIntHashMap/*name*/ implements Iterable { +public class /*name*/IntIntHashMap/*name*/ implements Cloneable, Iterable { private final float loadFactor; @@ -63,7 +68,33 @@ public class /*name*/IntIntHashMap/*name*/ implements Iterable { private int capacity; private int threshold; private /*value*/int/*value*/ keyNotFoundValue = /*null*/-1/*null*/; - + + private static final boolean isPrimitive; + private static final Constructor entryConstructor; + private static final Method equalsMethod; + + static { + final Class valueClazz = /*value*/int/*value*/.class; + final Class keyClazz = /*key*/int/*key*/.class; + + isPrimitive = valueClazz.isPrimitive(); + + Constructor c = null; + Method m = null; + if(!isPrimitive) { + c = ReflectionUtil.getConstructor(Entry.class, + new Class[] { keyClazz, valueClazz, Entry.class } ); + + try { + m = valueClazz.getDeclaredMethod("equals", Object.class); + } catch (NoSuchMethodException ex) { + throw new JogampRuntimeException("Class "+valueClazz+" doesn't support equals(Object)"); + } + } + entryConstructor = c; + equalsMethod = m; + } + public /*name*/IntIntHashMap/*name*/() { this(16, 0.75f); } @@ -92,12 +123,71 @@ public class /*name*/IntIntHashMap/*name*/ implements Iterable { this.mask = capacity - 1; } + private /*name*/IntIntHashMap/*name*/(float loadFactor, int table_size, int size, + int mask, int capacity, int threshold, + /*value*/int/*value*/ keyNotFoundValue) { + this.loadFactor = loadFactor; + this.table = new Entry[table_size]; + this.size = size; + + this.mask = mask; + this.capacity = capacity; + this.threshold = threshold; + + this.keyNotFoundValue = keyNotFoundValue; + } + + /** + * Disclaimer: If the value type doesn't implement {@link Object#clone() clone()}, only the reference is copied. + * Note: Due to private fields we cannot implement a copy constructor, sorry. + * + * @param source the primitive hash map to copy + */ + @Override + public Object clone() { + /*name*/IntIntHashMap/*name*/ n = + new /*name*/IntIntHashMap/*name*/(loadFactor, table.length, size, + mask, capacity, threshold, + keyNotFoundValue); + + for(int i=table.length-1; i>=0; i--) { + // single linked list -> ArrayList + final ArrayList<Entry> entries = new ArrayList(); + Entry se = table[i]; + while(null != se) { + entries.add(se); + se = se.next; + } + // clone ArrayList -> single linked list (bwd) + Entry de_next = null; + for(int j=entries.size()-1; j>=0; j--) { + se = entries.get(j); + if( isPrimitive ) { + de_next = new Entry(se.key, se.value, de_next); + } else { + final Object v = ReflectionUtil.callMethod(se.value, getCloneMethod(se.value)); + de_next = (Entry) ReflectionUtil.createInstance(entryConstructor, se.key, v, de_next); + } + } + // 1st elem of linked list is table entry + n.table[i] = de_next; + } + return n; + } + public boolean containsValue(/*value*/int/*value*/ value) { Entry[] t = this.table; for (int i = t.length; i-- > 0;) { for (Entry e = t[i]; e != null; e = e.next) { - if (e.value == value) { - return true; + if( isPrimitive ) { + if (e.value == value) { + return true; + } + } else { + final Boolean b = (Boolean) ReflectionUtil.callMethod(value, equalsMethod, e.value); + if(b.booleanValue()) { + return true; + } } } } @@ -138,7 +228,7 @@ public class /*name*/IntIntHashMap/*name*/ implements Iterable { */ // @SuppressWarnings(value="cast") public /*value*/int/*value*/ put(/*key*/int/*key*/ key, /*value*/int/*value*/ value) { - Entry[] t = this.table; + final Entry[] t = this.table; int index = (int) (key & mask); // Check if key already exists. for (Entry e = t[index]; e != null; e = e.next) { @@ -154,7 +244,7 @@ public class /*name*/IntIntHashMap/*name*/ implements Iterable { if (size++ >= threshold) { // Rehash. int newCapacity = 2 * capacity; - Entry[] newTable = new Entry[newCapacity]; + final Entry[] newTable = new Entry[newCapacity]; /*key*/int/*key*/ bucketmask = newCapacity - 1; for (int j = 0; j < t.length; j++) { Entry e = t[j]; @@ -224,6 +314,13 @@ public class /*name*/IntIntHashMap/*name*/ implements Iterable { } /** + * Returns the current capacity (buckets) in this map. + */ + public int capacity() { + return capacity; + } + + /** * Clears the entire map. The size is 0 after this operation. */ public void clear() { @@ -334,12 +431,12 @@ public class /*name*/IntIntHashMap/*name*/ implements Iterable { private Entry next; - private Entry(/*key*/int/*key*/ k, /*value*/int/*value*/ v, Entry n) { + Entry(/*key*/int/*key*/ k, /*value*/int/*value*/ v, Entry n) { key = k; value = v; next = n; } - + /** * Returns the key of this entry. */ @@ -367,4 +464,15 @@ public class /*name*/IntIntHashMap/*name*/ implements Iterable { } } + + private static Method getCloneMethod(Object obj) { + final Class clazz = obj.getClass(); + Method m = null; + try { + m = clazz.getDeclaredMethod("clone"); + } catch (NoSuchMethodException ex) { + throw new JogampRuntimeException("Class "+clazz+" doesn't support clone()", ex); + } + return m; + } } diff --git a/src/junit/com/jogamp/common/util/IntIntHashMapTest.java b/src/junit/com/jogamp/common/util/IntIntHashMapTest.java index 443d14f..bc03231 100644 --- a/src/junit/com/jogamp/common/util/IntIntHashMapTest.java +++ b/src/junit/com/jogamp/common/util/IntIntHashMapTest.java @@ -44,6 +44,7 @@ import static java.lang.System.*; /** * * @author Michael Bien + * @author Sven Gothel */ public class IntIntHashMapTest { @@ -67,7 +68,6 @@ public class IntIntHashMapTest { rndValues[i] = valueRnd.nextInt(); rndKeys[i] = keyRnd.nextInt(); } - } /** @@ -116,18 +116,129 @@ public class IntIntHashMapTest { intmap.put(rndKeys[i], rndValues[i]); } - Iterator iterator = intmap.iterator(); + Iterator<IntIntHashMap.Entry> iterator = intmap.iterator(); + assertNotNull(iterator); + assertTrue(iterator.hasNext()); + + int n = 0; + while (iterator.hasNext()) { + IntIntHashMap.Entry entry = iterator.next(); + assertNotNull(entry); + n++; + } + assertEquals(intmap.size(), n); + +// out.println(intmap); + + } + + @Test + public void cloneTest() { + + final int smallSize = iterations / 4 ; + + final IntIntHashMap intmap = new IntIntHashMap( smallSize + smallSize / 4, 0.75f); + intmap.setKeyNotFoundValue(-1); + + for (int i = 0; i < smallSize; i++) { + intmap.put(rndKeys[i], rndValues[i]); + } + assertEquals(intmap.size(), smallSize); + + final IntIntHashMap intmapCopy = (IntIntHashMap) intmap.clone(); + + assertEquals(intmap.size(), intmapCopy.size()); + assertEquals(intmap.getKeyNotFoundValue(), intmapCopy.getKeyNotFoundValue()); + + Iterator<IntIntHashMap.Entry> iterator = intmap.iterator(); + assertNotNull(iterator); + assertTrue(iterator.hasNext()); + + Iterator<IntIntHashMap.Entry> iteratorCopy = intmapCopy.iterator(); + assertNotNull(iteratorCopy); + assertTrue(iteratorCopy.hasNext()); + + int n = 0; + while (iterator.hasNext()) { + assertTrue(iteratorCopy.hasNext()); + IntIntHashMap.Entry entry = iterator.next(); + IntIntHashMap.Entry entryCopy = iteratorCopy.next(); + assertNotNull(entry); + assertNotNull(entryCopy); + assertEquals(entry.key, entryCopy.key); + assertEquals(entry.value, entryCopy.value); + n++; + } + assertTrue(!iteratorCopy.hasNext()); + + assertEquals(intmap.size(), n); + assertEquals(intmapCopy.size(), n); + + for (int i = 0; i < smallSize; i++) { + assertTrue(intmap.containsValue(rndValues[i])); + assertTrue(intmap.containsKey(rndKeys[i])); + assertTrue(intmapCopy.containsValue(rndValues[i])); + assertTrue(intmapCopy.containsKey(rndKeys[i])); + } + +// out.println(intmap); + + } + + @Test + public void capacityTest() { + final int fixedSize = 16; + final int capacity = 32; + + final IntIntHashMap intmap = new IntIntHashMap( capacity, 0.75f); + intmap.setKeyNotFoundValue(-1); + + assertEquals(intmap.capacity(), capacity); + for (int i = 0; i < fixedSize; i++) { + intmap.put(rndKeys[i], rndValues[i]); + } + assertEquals(intmap.size(), fixedSize); + assertEquals(intmap.capacity(), capacity); + + final IntIntHashMap intmapCopy = (IntIntHashMap) intmap.clone(); + + assertEquals(intmap.size(), intmapCopy.size()); + assertEquals(intmap.capacity(), intmapCopy.capacity()); + assertEquals(intmap.getKeyNotFoundValue(), intmapCopy.getKeyNotFoundValue()); + + Iterator<IntIntHashMap.Entry> iterator = intmap.iterator(); assertNotNull(iterator); assertTrue(iterator.hasNext()); + Iterator<IntIntHashMap.Entry> iteratorCopy = intmapCopy.iterator(); + assertNotNull(iteratorCopy); + assertTrue(iteratorCopy.hasNext()); + int n = 0; while (iterator.hasNext()) { - IntIntHashMap.Entry entry = (IntIntHashMap.Entry)iterator.next(); + assertTrue(iteratorCopy.hasNext()); + IntIntHashMap.Entry entry = iterator.next(); + IntIntHashMap.Entry entryCopy = iteratorCopy.next(); assertNotNull(entry); + assertNotNull(entryCopy); + assertEquals(entry.key, entryCopy.key); + assertEquals(entry.value, entryCopy.value); n++; } + assertTrue(!iteratorCopy.hasNext()); + assertEquals(intmap.size(), n); + assertEquals(intmap.capacity(), capacity); + assertEquals(intmapCopy.size(), n); + assertEquals(intmapCopy.capacity(), capacity); + for (int i = 0; i < fixedSize; i++) { + assertTrue(intmap.containsValue(rndValues[i])); + assertTrue(intmap.containsKey(rndKeys[i])); + assertTrue(intmapCopy.containsValue(rndValues[i])); + assertTrue(intmapCopy.containsKey(rndKeys[i])); + } + // out.println(intmap); } diff --git a/src/junit/com/jogamp/common/util/IntObjectHashMapTest.java b/src/junit/com/jogamp/common/util/IntObjectHashMapTest.java new file mode 100644 index 0000000..289ff7e --- /dev/null +++ b/src/junit/com/jogamp/common/util/IntObjectHashMapTest.java @@ -0,0 +1,210 @@ +/** + * Copyright 2010 JogAmp Community. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, are + * permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this list of + * conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, this list + * of conditions and the following disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF + * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * The views and conclusions contained in the software and documentation are those of the + * authors and should not be interpreted as representing official policies, either expressed + * or implied, of JogAmp Community. + */ + +/** + * Created on Sunday, March 28 2010 21:01 + */ +package com.jogamp.common.util; + +import java.io.IOException; +import java.util.HashMap; +import java.util.Iterator; +import java.util.Map.Entry; +import java.util.Random; +import org.junit.BeforeClass; +import org.junit.Test; +import static org.junit.Assert.*; + +/** + * + * @author Michael Bien + * @author Sven Gothel + */ +public class IntObjectHashMapTest { + + public static class IntCloneable implements Cloneable { + private int i; + + public IntCloneable(int i) { this.i = i; } + + public int intValue() { return i; } + + @Override + public Object clone() { + return new IntCloneable(i); + } + + @Override + public boolean equals(Object obj) { + if(this == obj) { return true; } + if (obj instanceof IntCloneable) { + IntCloneable v = (IntCloneable)obj; + return i == v.i ; + } + return false; + } + } + + private static int iterations; + private static int[] rndKeys; + private static IntCloneable[] rndValues; + + @BeforeClass + public static void init() { + + iterations = 20000; + final int keySeed = 42; + final int valueSeed = 23; + + Random keyRnd = new Random(/*keySeed*/); + Random valueRnd = new Random(/*valueSeed*/); + + rndKeys = new int[iterations]; + rndValues = new IntCloneable[iterations]; + for (int i = 0; i < iterations; i++) { + rndValues[i] = new IntCloneable(valueRnd.nextInt()); + rndKeys[i] = keyRnd.nextInt(); + } + } + + /** + * Test of put method, of class IntObjectHashMap. + */ + @Test + public void testPutRemove() { + + final IntObjectHashMap intmap = new IntObjectHashMap(); + final HashMap<Integer, IntCloneable> map = new HashMap<Integer, IntCloneable>(); + + // put + for (int i = 0; i < iterations; i++) { + intmap.put(rndKeys[i], rndValues[i]); + + assertTrue(intmap.containsValue(rndValues[i])); + assertTrue(intmap.containsKey(rndKeys[i])); + } + + for (int i = 0; i < iterations; i++) { + map.put(rndKeys[i], rndValues[i]); + } + + assertEquals(map.size(), intmap.size()); + + for (Entry<Integer, IntCloneable> entry : map.entrySet()) { + assertTrue(intmap.containsKey(entry.getKey())); + assertTrue(intmap.containsValue(entry.getValue())); + } + + int i = 0; + for (Entry<Integer, IntCloneable> entry : map.entrySet()) { + assertEquals(entry.getValue(), intmap.remove(entry.getKey())); + assertEquals(map.size() - i - 1, intmap.size()); + i++; + } + + } + + @Test + public void iteratorTest() { + + final IntObjectHashMap intmap = new IntObjectHashMap(iterations); + + for (int i = 0; i < iterations; i++) { + intmap.put(rndKeys[i], rndValues[i]); + } + + Iterator<IntObjectHashMap.Entry> iterator = intmap.iterator(); + assertNotNull(iterator); + assertTrue(iterator.hasNext()); + + int n = 0; + while (iterator.hasNext()) { + IntObjectHashMap.Entry entry = iterator.next(); + assertNotNull(entry); + n++; + } + assertEquals(intmap.size(), n); + +// out.println(intmap); + + } + + @Test + public void cloneTest() { + + final IntObjectHashMap intmap = new IntObjectHashMap(iterations); + + for (int i = 0; i < iterations; i++) { + intmap.put(rndKeys[i], rndValues[i]); + } + + final IntObjectHashMap intmapCopy = (IntObjectHashMap) intmap.clone(); + + assertEquals(intmap.size(), intmapCopy.size()); + assertEquals(intmap.getKeyNotFoundValue(), intmapCopy.getKeyNotFoundValue()); + + Iterator<IntObjectHashMap.Entry> iterator = intmap.iterator(); + assertNotNull(iterator); + assertTrue(iterator.hasNext()); + + Iterator<IntObjectHashMap.Entry> iteratorCopy = intmapCopy.iterator(); + assertNotNull(iteratorCopy); + assertTrue(iteratorCopy.hasNext()); + + int n = 0; + while (iterator.hasNext()) { + assertTrue(iteratorCopy.hasNext()); + IntObjectHashMap.Entry entry = iterator.next(); + IntObjectHashMap.Entry entryCopy = iteratorCopy.next(); + assertNotNull(entry); + assertNotNull(entryCopy); + assertEquals(entry.key, entryCopy.key); + assertEquals(entry.value, entryCopy.value); + n++; + } + assertTrue(!iteratorCopy.hasNext()); + + assertEquals(intmap.size(), n); + assertEquals(intmapCopy.size(), n); + + for (int i = 0; i < iterations; i++) { + assertTrue(intmap.containsValue(rndValues[i])); + assertTrue(intmap.containsKey(rndKeys[i])); + assertTrue(intmapCopy.containsValue(rndValues[i])); + assertTrue(intmapCopy.containsKey(rndKeys[i])); + } + +// out.println(intmap); + + } + + public static void main(String args[]) throws IOException { + org.junit.runner.JUnitCore.main(IntObjectHashMapTest.class.getName()); + } + +} |