Now uses Python if it can be found.

Jython was too slow, and took too much memory to be reliable, particularly for large data sets.

start_jython.sh

@@ -1,16 +0,0 @@
-#!/bin/bash
-
-JAVA_HOME=/home/sam/jre1.6.0_27
-SCRIPT_DIR=`dirname $0`
-
-# this script is done this way due to Jython's quirks.
-# see http://wiki.python.org/jython/JythonFaq/DistributingJythonScripts#Using_the_Class_Path
-CLASSPATH=$SCRIPT_DIR/java/lib
-for jar in $SCRIPT_DIR/java/lib/*.jar
-do
-    CLASSPATH=$jar:$CLASSPATH
-done
-
-JYTHONPATH=$SCRIPT_DIR/python/packages:$SCRIPT_DIR/python/src:$CLASSPATH:$JYTHONPATH 
-$JAVA_HOME/bin/java -cp $CLASSPATH -Dpython.path=$JYTHONPATH org.python.util.jython "$@"
-

start_python.sh

@@ -0,0 +1,81 @@
+#!/bin/bash
+
+##
+# This script attempts to find a version of Python on the system PATH, and
+# checks that it is 2.5+. If not, it attempts to find Java, and use Jython
+# instead.
+#
+# A alternate Python command can be specified in a file named PYTHON_CMD in this
+# script's directory. The same applies for Java, in a file named JAVA_CMD.
+# These paths will override any lookup on the system PATH.
+##
+
+# FUNCTIONS
+function checkPythonVersion {
+    if [ ! -z "$1" ]
+    then
+        PYTHON_VER_MAJOR=`echo $1 | cut -d "." -f 1`
+        PYTHON_VER_MINOR=`echo $1 | cut -d "." -f 2`
+        
+        if [ $PYTHON_VER_MAJOR -eq "2" -a $PYTHON_VER_MINOR -ge "5" ]
+        then
+            return 1
+        fi
+    fi
+    
+    return 0
+}
+
+# MAIN
+SCRIPT_DIR=`dirname $0`
+PYTHON_CMD=python
+
+# if there is a PYTHON_CMD file in the script directory, use that instead
+if [ -e "$SCRIPT_DIR/PYTHON_CMD" ]
+then
+    PYTHON_CMD=`cat $SCRIPT_DIR/PYTHON_CMD`
+fi
+
+if [ ! -z "`which $PYTHON_CMD 2>/dev/null`" ]
+then
+    # check if Python is the right version
+    PYTHON_VER=`$PYTHON_CMD -V 2>&1 | cut -d " " -f 2`
+    checkPythonVersion "$PYTHON_VER"
+    if [ $? == 1 ]
+    then
+        echo "Using Python `which $PYTHON_CMD`"
+        
+        # execution ends here if Python is found
+        PYTHONPATH=$SCRIPT_DIR/python/packages:$SCRIPT_DIR/python/src:$PYTHONPATH
+        env PYTHONPATH=$PYTHONPATH $PYTHON_CMD "$@"
+        exit $?
+    fi
+fi
+
+# no valid Python version, so we're going to use Jython instead
+echo "Python not found, attempting to use Jython..."
+
+JAVA_CMD=java
+if [ -e "$SCRIPT_DIR/JAVA_CMD" ]
+then
+    JAVA_CMD=`cat $SCRIPT_DIR/JAVA_CMD`
+fi
+
+if [ -z "`which $JAVA_CMD 2>/dev/null`" ]
+then
+    echo "Java not found. Try specifying path in a file named JAVA_CMD in the script dir."
+    exit 1
+fi
+
+echo "Using Jython with Java at `which $JAVA_CMD`"
+
+# this script is done this way due to Jython's quirks.
+# see http://wiki.python.org/jython/JythonFaq/DistributingJythonScripts#Using_the_Class_Path
+CLASSPATH=$SCRIPT_DIR/java/lib
+for jar in $SCRIPT_DIR/java/lib/*.jar
+do
+    CLASSPATH=$jar:$CLASSPATH
+done
+
+JYTHONPATH=$SCRIPT_DIR/python/packages:$SCRIPT_DIR/python/src:$CLASSPATH:$JYTHONPATH 
+$JAVA_CMD -cp $CLASSPATH -Dpython.path=$JYTHONPATH org.python.util.jython "$@"

start_solr.sh

@@ -1,8 +1,18 @@
 #!/bin/bash
 
-JAVA_HOME=/home/sam/jre1.6.0_27
 SCRIPT_DIR=`dirname $0`
 
-cd $SCRIPT_DIR/java/solr/server
-$JAVA_HOME/bin/java -jar start.jar
+JAVA_CMD=java
+if [ -e "$SCRIPT_DIR/JAVA_CMD" ]
+then
+    JAVA_CMD=`cat $SCRIPT_DIR/JAVA_CMD`
+fi
 
+if [ -z "`which $JAVA_CMD 2>/dev/null`" ]
+then
+    echo "Java not found. Try specifying path in a file named JAVA_CMD in the script dir."
+    exit 1
+fi
+
+cd $SCRIPT_DIR/java/solr/server
+$JAVA_CMD -jar start.jar

start_web.sh

@@ -1,6 +1,5 @@
 #!/bin/bash
 
-JAVA_HOME=/home/sam/jre1.6.0_27
 SCRIPT_DIR=`dirname $0`
 
-$SCRIPT_DIR/start_jython.sh $SCRIPT_DIR/python/src/stackdump.py
+$SCRIPT_DIR/start_python.sh $SCRIPT_DIR/python/src/stackdump.py