Github user bodewig commented on a diff in the pull request:
https://github.com/apache/ant/pull/60#discussion_r168964381
--- Diff:
src/main/org/apache/tools/ant/taskdefs/optional/junitlauncher/AbstractJUnitResultFormatter.java
---
@@ -0,0 +1,139 @@
+package org.apache.tools.ant.taskdefs.optional.junitlauncher;
+
+import org.apache.tools.ant.Project;
+import org.apache.tools.ant.Task;
+import org.junit.platform.engine.TestSource;
+import org.junit.platform.engine.support.descriptor.ClassSource;
+import org.junit.platform.launcher.TestIdentifier;
+import org.junit.platform.launcher.TestPlan;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.Writer;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Optional;
+
+/**
+ * Contains some common behaviour that's used by our internal {@link
TestResultFormatter}s
+ */
+abstract class AbstractJUnitResultFormatter implements TestResultFormatter
{
+
+ protected static String NEW_LINE =
System.getProperty("line.separator");
+ protected Path sysOutFilePath;
+ protected Path sysErrFilePath;
+ protected Task task;
+
+ private OutputStream sysOutStream;
+ private OutputStream sysErrStream;
+
+ @Override
+ public void sysOutAvailable(final byte[] data) {
+ if (this.sysOutStream == null) {
+ try {
+ this.sysOutFilePath = Files.createTempFile(null, "sysout");
+ this.sysOutFilePath.toFile().deleteOnExit();
+ this.sysOutStream =
Files.newOutputStream(this.sysOutFilePath);
+ } catch (IOException e) {
+ handleException(e);
+ return;
+ }
+ }
+ try {
+ this.sysOutStream.write(data);
+ } catch (IOException e) {
+ handleException(e);
+ return;
+ }
+ }
+
+ @Override
+ public void sysErrAvailable(final byte[] data) {
+ if (this.sysErrStream == null) {
+ try {
+ this.sysErrFilePath = Files.createTempFile(null, "syserr");
+ this.sysErrFilePath.toFile().deleteOnExit();
+ this.sysErrStream =
Files.newOutputStream(this.sysOutFilePath);
+ } catch (IOException e) {
+ handleException(e);
+ return;
+ }
+ }
+ try {
+ this.sysErrStream.write(data);
+ } catch (IOException e) {
+ handleException(e);
+ return;
+ }
+ }
+
+ @Override
+ public void setExecutingTask(final Task task) {
+ this.task = task;
+ }
+
+ protected void writeSysOut(final Writer writer) throws IOException {
+ this.writeFrom(this.sysOutFilePath, writer);
+ }
+
+ protected void writeSysErr(final Writer writer) throws IOException {
+ this.writeFrom(this.sysErrFilePath, writer);
+ }
+
+ static Optional<TestIdentifier> traverseAndFindTestClass(final
TestPlan testPlan, final TestIdentifier testIdentifier) {
+ if (isTestClass(testIdentifier).isPresent()) {
+ return Optional.of(testIdentifier);
+ }
+ final Optional<TestIdentifier> parent =
testPlan.getParent(testIdentifier);
+ return parent.isPresent() ? traverseAndFindTestClass(testPlan,
parent.get()) : Optional.empty();
+ }
+
+ static Optional<ClassSource> isTestClass(final TestIdentifier
testIdentifier) {
+ if (testIdentifier == null) {
+ return Optional.empty();
+ }
+ final Optional<TestSource> source = testIdentifier.getSource();
+ if (!source.isPresent()) {
+ return Optional.empty();
+ }
+ final TestSource testSource = source.get();
+ if (testSource instanceof ClassSource) {
+ return Optional.of((ClassSource) testSource);
+ }
+ return Optional.empty();
+ }
+
+ private void writeFrom(final Path path, final Writer writer) throws
IOException {
+ final byte[] content = new byte[1024];
+ int numBytes;
+ try (final InputStream is = Files.newInputStream(path)) {
+ while ((numBytes = is.read(content)) != -1) {
+ writer.write(new String(content, 0, numBytes));
+ }
+ }
+ }
+
+ @Override
+ public void close() throws IOException {
+ if (this.sysOutStream != null) {
+ try {
+ this.sysOutStream.close();
+ } catch (Exception e) {
+ // ignore
+ }
+ }
--- End diff --
`FileUtils.close`?
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