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new d15f480 [IO-617] Add class CloseShieldWriter. #83.
d15f480 is described below
commit d15f480dd81b373f6815340c15b7a80490e8272d
Author: Gary Gregory <gardgreg...@gmail.com>
AuthorDate: Fri Aug 9 11:26:40 2019 -0400
[IO-617] Add class CloseShieldWriter. #83.
- Applied partial patch from GitHub PR #83 from Rob Spoor which
contained duplication from another PR.
- Reformatted some files.
- Closes #83.
---
src/changes/changes.xml | 3 ++
.../commons/io/output/CloseShieldOutputStream.java | 2 +-
...eldOutputStream.java => CloseShieldWriter.java} | 27 ++++++------
...tStreamTest.java => CloseShieldWriterTest.java} | 49 ++++++++++++----------
.../commons/io/output/ClosedOutputStreamTest.java | 2 +-
5 files changed, 43 insertions(+), 40 deletions(-)
diff --git a/src/changes/changes.xml b/src/changes/changes.xml
index bd246d9..f186243 100644
--- a/src/changes/changes.xml
+++ b/src/changes/changes.xml
@@ -125,6 +125,9 @@ The <action> type attribute can be add,update,fix,remove.
<action issue="IO-616" dev="ggregory" type="add" due-to="Rob Spoor">
Add class AppendableWriter. #87.
</action>
+ <action issue="IO-617" dev="ggregory" type="add" due-to="Rob Spoor, Gary
Gregory">
+ Add class CloseShieldWriter. #83.
+ </action>
</release>
<release version="2.6" date="2017-10-15" description="Java 7 required,
Java 9 supported.">
diff --git
a/src/main/java/org/apache/commons/io/output/CloseShieldOutputStream.java
b/src/main/java/org/apache/commons/io/output/CloseShieldOutputStream.java
index 8518b7b..8146533 100644
--- a/src/main/java/org/apache/commons/io/output/CloseShieldOutputStream.java
+++ b/src/main/java/org/apache/commons/io/output/CloseShieldOutputStream.java
@@ -47,7 +47,7 @@ public class CloseShieldOutputStream extends
ProxyOutputStream {
*/
@Override
public void close() {
- out = new ClosedOutputStream();
+ out = ClosedOutputStream.CLOSED_OUTPUT_STREAM;
}
}
diff --git
a/src/main/java/org/apache/commons/io/output/CloseShieldOutputStream.java
b/src/main/java/org/apache/commons/io/output/CloseShieldWriter.java
similarity index 54%
copy from
src/main/java/org/apache/commons/io/output/CloseShieldOutputStream.java
copy to src/main/java/org/apache/commons/io/output/CloseShieldWriter.java
index 8518b7b..73a351b 100644
--- a/src/main/java/org/apache/commons/io/output/CloseShieldOutputStream.java
+++ b/src/main/java/org/apache/commons/io/output/CloseShieldWriter.java
@@ -16,38 +16,35 @@
*/
package org.apache.commons.io.output;
-import java.io.OutputStream;
+import java.io.Writer;
/**
- * Proxy stream that prevents the underlying output stream from being closed.
+ * Proxy stream that prevents the underlying writer from being closed.
* <p>
- * This class is typically used in cases where an output stream needs to be
- * passed to a component that wants to explicitly close the stream even if
- * other components would still use the stream for output.
+ * This class is typically used in cases where a writer needs to be passed to
a component that wants to explicitly close
+ * the writer even if other components would still use the writer for output.
* </p>
*
- * @since 1.4
+ * @since 2.7
*/
-public class CloseShieldOutputStream extends ProxyOutputStream {
+public class CloseShieldWriter extends ProxyWriter {
/**
- * Creates a proxy that shields the given output stream from being
- * closed.
+ * Creates a proxy that shields the given writer from being closed.
*
- * @param out underlying output stream
+ * @param out underlying writer
*/
- public CloseShieldOutputStream(final OutputStream out) {
+ public CloseShieldWriter(final Writer out) {
super(out);
}
/**
- * Replaces the underlying output stream with a {@link ClosedOutputStream}
- * sentinel. The original output stream will remain open, but this proxy
- * will appear closed.
+ * Replaces the underlying writer with a {@link ClosedWriter} sentinel.
The original writer will remain open, but
+ * this proxy will appear closed.
*/
@Override
public void close() {
- out = new ClosedOutputStream();
+ out = ClosedWriter.CLOSED_WRITER;
}
}
diff --git
a/src/test/java/org/apache/commons/io/output/ClosedOutputStreamTest.java
b/src/test/java/org/apache/commons/io/output/CloseShieldWriterTest.java
similarity index 52%
copy from src/test/java/org/apache/commons/io/output/ClosedOutputStreamTest.java
copy to src/test/java/org/apache/commons/io/output/CloseShieldWriterTest.java
index 45e3cab..72f728a 100644
--- a/src/test/java/org/apache/commons/io/output/ClosedOutputStreamTest.java
+++ b/src/test/java/org/apache/commons/io/output/CloseShieldWriterTest.java
@@ -16,43 +16,46 @@
*/
package org.apache.commons.io.output;
+import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.verify;
import java.io.IOException;
+import java.io.Writer;
+import org.junit.Before;
import org.junit.Test;
/**
- * JUnit Test Case for {@link ClosedOutputStream}.
+ * JUnit Test Case for {@link CloseShieldWriter}.
*/
-public class ClosedOutputStreamTest {
+public class CloseShieldWriterTest {
- /**
- * Test the <code>write(b)</code> method.
- * @throws Exception
- */
- @Test
- public void testRead() throws Exception {
- try (ClosedOutputStream cos = new ClosedOutputStream()) {
- cos.write('x');
- fail("write(b)");
- } catch (final IOException e) {
- // expected
- }
+ private StringBuilderWriter original;
+
+ private Writer shielded;
+
+ @Before
+ public void setUp() {
+ original = spy(new StringBuilderWriter());
+ shielded = new CloseShieldWriter(original);
}
- /**
- * Test the <code>flush()</code> method.
- * @throws Exception
- */
@Test
- public void testFlush() throws Exception {
- try (ClosedOutputStream cos = new ClosedOutputStream()) {
- cos.flush();
- fail("flush()");
- } catch (final IOException e) {
+ public void testClose() throws IOException {
+ shielded.close();
+ verify(original, never()).close();
+ try {
+ shielded.write('x');
+ fail("write(c)");
+ } catch (final IOException ignore) {
// expected
}
+ original.write('y');
+ assertEquals(1, original.getBuilder().length());
+ assertEquals('y', original.toString().charAt(0));
}
}
diff --git
a/src/test/java/org/apache/commons/io/output/ClosedOutputStreamTest.java
b/src/test/java/org/apache/commons/io/output/ClosedOutputStreamTest.java
index 45e3cab..e5d8321 100644
--- a/src/test/java/org/apache/commons/io/output/ClosedOutputStreamTest.java
+++ b/src/test/java/org/apache/commons/io/output/ClosedOutputStreamTest.java
@@ -32,7 +32,7 @@ public class ClosedOutputStreamTest {
* @throws Exception
*/
@Test
- public void testRead() throws Exception {
+ public void testWrite() throws Exception {
try (ClosedOutputStream cos = new ClosedOutputStream()) {
cos.write('x');
fail("write(b)");
