Java Buffer.addAll方法代码示例

import org.apache.commons.collections15.Buffer; //导入方法依赖的package包/类
/**
 * Tests {@link BlockingBuffer#get()} in combination with {@link BlockingBuffer#addAll()} using multiple read threads.
 * <p/>
 * Two read threads should block on an empty buffer until a
 * singleton is added then both threads should complete.
 */
public void testBlockedGetWithAddAll() {

    Buffer blockingBuffer = BlockingBuffer.decorate(new MyBuffer());
    Object obj = new Object();
    
    // run methods will get and compare -- must wait for addAll
    Thread thread1 = new ReadThread(blockingBuffer, obj);
    Thread thread2 = new ReadThread(blockingBuffer, obj);
    thread1.start();
    thread2.start();
    
    // give hungry read threads ample time to hang
    delay();
       
    // notifyAll should allow both read threads to complete
    blockingBuffer.addAll(Collections.singleton(obj));
           
    // allow notified threads to complete 
    delay();
    
    // There should not be any threads waiting.
    if (thread1.isAlive() || thread2.isAlive())
        fail("Live thread(s) when both should be dead.");
}
 

import org.apache.commons.collections15.Buffer; //导入方法依赖的package包/类
/**
 * Tests {@link BlockingBuffer#remove()} in combination with {@link BlockingBuffer#addAll()} using multiple read threads.
 * <p/>
 * Two read threads should block on an empty buffer until a
 * singleton collection is added then one thread should
 * complete. The remaining thread should complete after the
 * addition of a second singleton.
 */
public void testBlockedRemoveWithAddAll1() {

    Buffer blockingBuffer = BlockingBuffer.decorate(new MyBuffer());
    Object obj = new Object();
    
    // run methods will remove and compare -- must wait for addAll
    Thread thread1 = new ReadThread(blockingBuffer, obj, null, "remove");
    Thread thread2 = new ReadThread(blockingBuffer, obj, null, "remove");
    thread1.start();
    thread2.start();
    
    // give hungry read threads ample time to hang
    delay();

    blockingBuffer.addAll(Collections.singleton(obj));
    
    // allow notified threads to complete 
    delay();
    
    // There should be one thread waiting.
    assertTrue("There is one thread waiting", thread1.isAlive() ^ thread2.isAlive());

    blockingBuffer.addAll(Collections.singleton(obj));
    
    // allow notified thread to complete 
    delay();

    // There should not be any threads waiting.
    if (thread1.isAlive() || thread2.isAlive())
        fail("Live thread(s) when both should be dead.");
}
 

import org.apache.commons.collections15.Buffer; //导入方法依赖的package包/类
/**
 * Tests {@link BlockingBuffer#remove()} in combination with {@link BlockingBuffer#addAll()} using multiple read threads.
 * <p/>
 * Two read threads should block on an empty buffer until a
 * collection with two distinct objects is added then both
 * threads should complete. Each thread should have read a
 * different object.
 */
public void testBlockedRemoveWithAddAll2() {

    Buffer blockingBuffer = BlockingBuffer.decorate(new MyBuffer());
    Object obj1 = new Object();
    Object obj2 = new Object();

    Set objs = Collections.synchronizedSet(new HashSet());
    objs.add(obj1);
    objs.add(obj2);

    // run methods will remove and compare -- must wait for addAll
    Thread thread1 = new ReadThread(blockingBuffer, objs, "remove");
    Thread thread2 = new ReadThread(blockingBuffer, objs, "remove");
    thread1.start();
    thread2.start();
    
    // give hungry read threads ample time to hang
    delay();

    blockingBuffer.addAll(objs);
    
    // allow notified threads to complete 
    delay();

    assertEquals("Both objects were removed", 0, objs.size());

    // There should not be any threads waiting.
    if (thread1.isAlive() || thread2.isAlive())
        fail("Live thread(s) when both should be dead.");
}
 

import org.apache.commons.collections15.Buffer; //导入方法依赖的package包/类
public Collection makeFullCollection() {
    Buffer buffer = new UnboundedFifoBuffer();
    buffer.addAll(Arrays.asList(getFullElements()));
    return UnmodifiableBuffer.decorate(buffer);
}
 

import org.apache.commons.collections15.Buffer; //导入方法依赖的package包/类
public Collection makeFullCollection() {
    Buffer buffer = new UnboundedFifoBuffer();
    buffer.addAll(Arrays.asList(getFullElements()));
    return SynchronizedBuffer.decorate(buffer);
}