org.apache.solr.common.util.ContentStreamTest.java Source code

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Here is the source code for org.apache.solr.common.util.ContentStreamTest.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.solr.common.util;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.URL;
import java.nio.charset.StandardCharsets;

import org.apache.commons.io.IOUtils;
import org.apache.solr.SolrTestCaseJ4;
import org.apache.solr.core.SolrResourceLoader;

/**
 */
public class ContentStreamTest extends SolrTestCaseJ4 {
    public void testStringStream() throws IOException {
        String input = "aads ghaskdgasgldj asl sadg ajdsg &jag # @ hjsakg hsakdg hjkas s";
        ContentStreamBase stream = new ContentStreamBase.StringStream(input);
        assertEquals(input.length(), stream.getSize().intValue());
        assertEquals(input, IOUtils.toString(stream.getStream(), "UTF-8"));
        assertEquals(input, IOUtils.toString(stream.getReader()));
    }

    public void testFileStream() throws IOException {
        InputStream is = new SolrResourceLoader().openResource("solrj/README");
        assertNotNull(is);
        File file = new File(createTempDir().toFile(), "README");
        FileOutputStream os = new FileOutputStream(file);
        IOUtils.copy(is, os);
        os.close();
        is.close();

        ContentStreamBase stream = new ContentStreamBase.FileStream(file);
        InputStream s = stream.getStream();
        FileInputStream fis = new FileInputStream(file);
        InputStreamReader isr = new InputStreamReader(new FileInputStream(file), StandardCharsets.UTF_8);
        Reader r = stream.getReader();
        try {
            assertEquals(file.length(), stream.getSize().intValue());
            assertTrue(IOUtils.contentEquals(fis, s));
            assertTrue(IOUtils.contentEquals(isr, r));
        } finally {
            s.close();
            r.close();
            isr.close();
            fis.close();
        }
    }

    public void testURLStream() throws IOException {
        InputStream is = new SolrResourceLoader().openResource("solrj/README");
        assertNotNull(is);
        File file = new File(createTempDir().toFile(), "README");
        FileOutputStream os = new FileOutputStream(file);
        IOUtils.copy(is, os);
        os.close();
        is.close();

        ContentStreamBase stream = new ContentStreamBase.URLStream(new URL(file.toURI().toASCIIString()));
        InputStream s = stream.getStream();
        FileInputStream fis = new FileInputStream(file);
        FileInputStream fis2 = new FileInputStream(file);
        InputStreamReader isr = new InputStreamReader(fis, StandardCharsets.UTF_8);
        Reader r = stream.getReader();
        try {
            assertTrue(IOUtils.contentEquals(fis2, s));
            assertEquals(file.length(), stream.getSize().intValue());
            assertTrue(IOUtils.contentEquals(isr, r));
            assertEquals(file.length(), stream.getSize().intValue());
        } finally {
            r.close();
            s.close();
            isr.close();
            fis.close();
            fis2.close();
        }
    }
}