add name to lines redirected to maven log

Author: chonton

src/it/order/verify.bsh

@@ -7,7 +7,7 @@ import java.nio.file.Files;
     for(;;) {
       String line = reader.readLine();
       if(line == null) {
-        throw new AssertionError(expected + " not found");
+        throw new IllegalStateException(expected + " not found");
       }
       if(line.equals(expected)) {
         return;
@@ -28,9 +28,9 @@ import java.nio.file.Files;
 
   file = new File(basedir, "build.log" );
   reader = Files.newBufferedReader(file.toPath(), StandardCharsets.UTF_8);
-  findLine(reader, "[INFO] one started");
-  findLine(reader, "[ERROR] one again");
-  findLine(reader, "[INFO] two started");
-  findLine(reader, "[ERROR] two again");
+  findLine(reader, "[INFO] [order-one] one started");
+  findLine(reader, "[ERROR] [order-one] one again");
+  findLine(reader, "[INFO] [order-two] two started");
+  findLine(reader, "[ERROR] [order-two] two again");
 
 

src/main/java/org/honton/chas/process/exec/maven/plugin/ExecProcess.java

@@ -7,6 +7,7 @@
 import java.util.Map;
 import java.util.concurrent.TimeUnit;
 import org.apache.maven.plugin.logging.Log;
+import org.honton.chas.process.exec.maven.plugin.StdoutRedirector.LineWriter;
 
 public class ExecProcess {
   private Process process;
@@ -63,8 +64,18 @@ private void redirectToLogFile(ProcessBuilder pb) throws IOException {
   }
 
   private void redirectStream() throws IOException {
-    new StdoutRedirector(process.getInputStream(), log, false);
-    new StdoutRedirector(process.getErrorStream(), log, true);
+    new StdoutRedirector(name, process.getInputStream(), new LineWriter() {
+      @Override
+      public void writeLine(String line) {
+        log.info(line);
+      }
+    });
+    new StdoutRedirector(name, process.getErrorStream(), new LineWriter() {
+      @Override
+      public void writeLine(String line) {
+        log.error(line);
+      }
+    });
   }
 
   public void destroy() {

src/main/java/org/honton/chas/process/exec/maven/plugin/StdoutRedirector.java

@@ -8,22 +8,31 @@
 
 public class StdoutRedirector extends Thread {
 
+  interface LineWriter {
+    void writeLine(String line);
+  }
+
+  private final String streamName;
   private final BufferedReader in;
-  private final Log log;
-  private final boolean isErr;
+  private final LineWriter lineWriter;
 
-  StdoutRedirector(InputStream in, Log log, boolean isErr) {
+  StdoutRedirector(String streamName, InputStream in, LineWriter lineWriter) {
+    this.streamName = streamName;
     this.in = new BufferedReader(new InputStreamReader(in));
-    this.log = log;
-    this.isErr = isErr;
+    this.lineWriter = lineWriter;
     setDaemon(true);
     start();
   }
 
   @Override
   public void run() {
     try {
-      while (oneLine()) {
+      for(;;){
+        String line = in.readLine();
+        if (line == null) {
+          return;
+        }
+        lineWriter.writeLine('[' + streamName + "] " + line);
       }
     } catch (IOException ignore) {
     } finally {
@@ -34,18 +43,4 @@ public void run() {
       }
     }
   }
-
-  private boolean oneLine() throws IOException {
-    String line = in.readLine();
-    if(line == null) {
-      return false;
-    }
-    if(isErr) {
-      log.error(line);
-    }
-    else {
-      log.info(line);
-    }
-    return true;
-  }
 }