Example usage for org.springframework.batch.item ItemStreamReader ItemStreamReader

Introduction

In this page you can find the example usage for org.springframework.batch.item ItemStreamReader ItemStreamReader.

Prototype

ItemStreamReader

Source Link

Usage

From source file:org.springframework.batch.core.step.item.FaultTolerantStepFactoryBeanTests.java

/**
 * Check ItemStream is opened//from   w ww . j  a v  a 2s.  c om
 */
@Test
public void testNestedItemStreamOpened() throws Exception {
    writer.setFailures("4");

    ItemStreamReader<String> reader = new ItemStreamReader<String>() {
        @Override
        public void close() throws ItemStreamException {
        }

        @Override
        public void open(ExecutionContext executionContext) throws ItemStreamException {
        }

        @Override
        public void update(ExecutionContext executionContext) throws ItemStreamException {
        }

        @Override
        public String read() throws Exception, UnexpectedInputException, ParseException {
            return null;
        }
    };

    ItemStreamReader<String> stream = new ItemStreamReader<String>() {
        @Override
        public void close() throws ItemStreamException {
            closed = true;
        }

        @Override
        public void open(ExecutionContext executionContext) throws ItemStreamException {
            opened = true;
        }

        @Override
        public void update(ExecutionContext executionContext) throws ItemStreamException {
        }

        @Override
        public String read() throws Exception, UnexpectedInputException, ParseException {
            return null;
        }
    };

    factory.setItemReader(reader);
    factory.setStreams(new ItemStream[] { stream, reader });

    Step step = factory.getObject();

    step.execute(stepExecution);

    assertTrue(opened);
    assertTrue(closed);
    assertEquals(BatchStatus.COMPLETED, stepExecution.getStatus());
}

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From source file:org.springframework.batch.core.step.item.FaultTolerantStepFactoryBeanTests.java

/**
 * Check ItemStream is opened//  w  w  w  . jav a2  s  .  c o m
 */
@SuppressWarnings("unchecked")
@Test
public void testProxiedItemStreamOpened() throws Exception {
    writer.setFailures("4");

    ItemStreamReader<String> reader = new ItemStreamReader<String>() {
        @Override
        public void close() throws ItemStreamException {
            closed = true;
        }

        @Override
        public void open(ExecutionContext executionContext) throws ItemStreamException {
            opened = true;
        }

        @Override
        public void update(ExecutionContext executionContext) throws ItemStreamException {
        }

        @Override
        public String read() throws Exception, UnexpectedInputException, ParseException {
            return null;
        }
    };

    ProxyFactory proxy = new ProxyFactory();
    proxy.setTarget(reader);
    proxy.setInterfaces(new Class<?>[] { ItemReader.class, ItemStream.class });
    proxy.addAdvice(new MethodInterceptor() {
        @Override
        public Object invoke(MethodInvocation invocation) throws Throwable {
            return invocation.proceed();
        }
    });
    Object advised = proxy.getProxy();

    factory.setItemReader((ItemReader<? extends String>) advised);
    factory.setStreams(new ItemStream[] { (ItemStream) advised });

    Step step = factory.getObject();

    step.execute(stepExecution);

    assertTrue(opened);
    assertTrue(closed);
    assertEquals(BatchStatus.COMPLETED, stepExecution.getStatus());
}

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