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added getDebugHost() and getDebugPort() methods to Platform for convenience

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This commit is contained in:
Shu Lei
2007-12-01 01:04:34 +00:00
parent 9fd34436fe
commit 3c05880012
4 changed files with 134 additions and 117 deletions
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6
src/core/org/luaj/vm/LuaState.java
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@@ -70,9 +70,13 @@ import org.luaj.lib.TableLib;
*/
public class LuaState extends Lua {
public static final String PROPERTY_LUAJ_DEBUG = "Luaj-Debug";
protected static final String DEBUG_CLASS_NAME = "org.luaj.debug.DebugLuaState";
public static final String PROPERTY_LUAJ_DEBUG = "Luaj-Debug";
public static final String PROPERTY_LUAJ_DEBUG_SUSPEND_AT_START = "Luaj-Debug-SuspendAtStart";
public static final String PROPERTY_LUAJ_DEBUG_HOST = "Luaj-Debug-Host";
public static final String PROPERTY_LUAJ_DEBUG_PORT = "Luaj-Debug-Port";
/* thread status; 0 is OK */
private static final int LUA_YIELD = 1;
private static final int LUA_ERRRUN = 2;

53
src/core/org/luaj/vm/Platform.java
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@@ -29,7 +29,8 @@ import java.io.Reader;
/**
* Singleton to manage platform-specific behaviors.
*
* @deprecated - will probably be replaced with Config, LuaConfig or something similar.
* @deprecated - will probably be replaced with Config, LuaConfig or something
* similar.
*/
abstract public class Platform {
private static Platform instance;
@@ -37,9 +38,8 @@ abstract public class Platform {
/**
* Singleton to be used for platform operations.
*
* The default Platform gets files as resources,
* and converts them to characters using the default
* InputStreamReader class.
* The default Platform gets files as resources, and converts them to
* characters using the default InputStreamReader class.
*/
public static Platform getInstance() {
if (instance == null) {
@@ -53,7 +53,8 @@ abstract public class Platform {
}
/**
* Assumes J2SE platform, return the corresponding system property
* Assumes J2SE platform, return the corresponding system
* property
*/
public String getProperty(String propertyName) {
return System.getProperty(propertyName);
@@ -73,8 +74,8 @@ abstract public class Platform {
/**
* Set the Platform instance.
*
* This may be useful to define a file search path,
* or custom character encoding conversion properties.
* This may be useful to define a file search path, or custom character
* encoding conversion properties.
*/
public static void setInstance(Platform platform) {
instance = platform;
@@ -82,28 +83,60 @@ abstract public class Platform {
/**
* Return an InputStream or null if not found for a particular file name.
* @param fileName Name of the file to open
*
* @param fileName
* Name of the file to open
* @return InputStream or null if not found.
*/
abstract public InputStream openFile(String fileName);
/**
* Create Reader from an InputStream
* @param inputStream InputStream to read from
*
* @param inputStream
* InputStream to read from
* @return Reader instance to use for character input
*/
abstract public Reader createReader(InputStream inputStream);
/**
* Returns the value for the given platform property.
* @param propertyName Property name
*
* @param propertyName
* Property name
* @return Property value
*/
abstract public String getProperty(String propertyName);
/**
* Returns an platform dependent DebugSupport instance.
*
* @return an platform dependent DebugSupport instance.
*/
abstract public DebugNetSupport getDebugSupport() throws IOException;
/**
* Convenience method for the subclasses to figure out the debug host.
* @return the debug host property. If it is not present, null is returned.
*/
protected String getDebugHost() {
String host = getProperty(LuaState.PROPERTY_LUAJ_DEBUG_HOST);
return host;
}
/**
* Convenience method for the subclasses to figure out the debug port.
* @return -1 if the port is not found in the platform properties; the port
* as an integer if it is present in the platform properties and valid.
*/
protected int getDebugPort() {
String portStr = getProperty(LuaState.PROPERTY_LUAJ_DEBUG_PORT);
int port = -1;
if (portStr != null) {
try {
port = Integer.parseInt(portStr);
} catch (NumberFormatException e) {}
}
return port;
}
}

4
src/debug/org/luaj/debug/DebugLuaState.java
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@@ -50,10 +50,6 @@ import org.luaj.vm.Platform;
public class DebugLuaState extends LuaState implements DebugRequestListener {
public static final String PROPERTY_LUAJ_DEBUG_SUSPEND_AT_START = "Luaj-Debug-SuspendAtStart";
public static final String PROPERTY_LUAJ_DEBUG_HOST = "Luaj-Debug-Host";
public static final String PROPERTY_LUAJ_DEBUG_PORT = "Luaj-Debug-Port";
private static final boolean TRACE = (null != System.getProperty("TRACE"));
// stepping constants and stepping state

18
src/test/java/org/luaj/debug/j2se/LuaJVMTest.java
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@@ -66,26 +66,10 @@ public class LuaJVMTest extends TestCase {
* Provides a J2SE DebugSupport instance.
*/
public DebugNetSupport getDebugSupport() throws IOException {
int port = getDebugPortNumber();
int port = getDebugPort();
DebugSupportImpl debugSupport = new DebugSupportImpl(port);
return debugSupport;
}
private int getDebugPortNumber() throws IOException {
String portStr =
getProperty(DebugLuaState.PROPERTY_LUAJ_DEBUG_PORT);
int port = -1;
if (portStr == null) {
throw new IOException("Port number must be specified in the System property");
} else {
try {
port = Integer.parseInt(portStr);
} catch (NumberFormatException e) {
throw new IOException("Bad port number: " + portStr);
}
}
return port;
}
});
}