Example usage for java.lang AutoCloseable close

Introduction

In this page you can find the example usage for java.lang AutoCloseable close.

Prototype

void close() throws Exception;

Source Link

Document

Closes this resource, relinquishing any underlying resources.

Usage

From source file:com.joyent.manta.client.MantaClient.java

@Override
public void close() {
    if (this.closed) {
        return;//from  w w  w . j ava2 s  . c  o  m
    }

    this.closed = true;

    final List<Exception> exceptions = new ArrayList<>();

    /* We explicitly close all streams that may have been opened when
     * this class (MantaClient) is closed. This helps to alleviate problems
     * where resources haven't been closed properly. In particular, this
     * is useful for the streamingIterator() method that returns an
     * iterator that must be closed after consumption. */
    for (AutoCloseable closeable : danglingStreams) {
        try {
            if (closeable == null) {
                continue;
            }

            closeable.close();
        } catch (InterruptedException ie) {
            /* Do nothing, but we won't capture the interrupted exception
             * because even if we are interrupted, we want to close all open
             * resources. */
        } catch (Exception e) {
            exceptions.add(e);
        }
    }

    try {
        this.httpHelper.close();
    } catch (InterruptedException ie) {
        /* Do nothing, but we won't capture the interrupted exception
         * because even if we are interrupted, we want to close all open
         * resources. */
    } catch (Exception e) {
        exceptions.add(e);
    }

    // Deregister associated MBeans
    try {
        if (this.agent != null) {
            this.agent.close();
        }
    } catch (Exception e) {
        exceptions.add(e);
    }

    try {
        this.config.close();
    } catch (final Exception e) {
        exceptions.add(e);
    }

    // Shut down the ForkJoinPool that may be executing find() operations
    try {
        this.findForkJoinPool.shutdownNow();
    } catch (Exception e) {
        exceptions.add(e);
    }

    if (!exceptions.isEmpty()) {
        String msg = "At least one exception was thrown when performing close()";
        OnCloseAggregateException exception = new OnCloseAggregateException(msg);

        exceptions.forEach(exception::aggregateException);

        throw exception;
    }
}