下面列出了javax.servlet.SingleThreadModel#org.apache.jasper.compiler.Localizer 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
private void handleMissingResource(HttpServletRequest request,
HttpServletResponse response, String jspUri)
throws ServletException, IOException {
String includeRequestUri =
(String)request.getAttribute(RequestDispatcher.INCLUDE_REQUEST_URI);
if (includeRequestUri != null) {
// This file was included. Throw an exception as
// a response.sendError() will be ignored
String msg =
Localizer.getMessage("jsp.error.file.not.found",jspUri);
// Strictly, filtering this is an application
// responsibility but just in case...
throw new ServletException(Escape.htmlElementContent(msg));
} else {
try {
response.sendError(HttpServletResponse.SC_NOT_FOUND,
request.getRequestURI());
} catch (IllegalStateException ise) {
log.error(Localizer.getMessage("jsp.error.file.not.found",
jspUri));
}
}
return;
}
public Class<?> load() throws JasperException {
try {
getJspLoader();
String name = getFQCN();
servletClass = jspLoader.loadClass(name);
} catch (ClassNotFoundException cex) {
throw new JasperException(Localizer.getMessage("jsp.error.unable.load"),
cex);
} catch (Exception ex) {
throw new JasperException(Localizer.getMessage("jsp.error.unable.compile"),
ex);
}
removed = false;
return servletClass;
}
protected void createOutputDir() {
String path = null;
if (isTagFile()) {
String tagName = tagInfo.getTagClassName();
path = tagName.replace('.', File.separatorChar);
path = path.substring(0, path.lastIndexOf(File.separatorChar));
} else {
path = getServletPackageName().replace('.',File.separatorChar);
}
// Append servlet or tag handler path to scratch dir
try {
File base = options.getScratchDir();
baseUrl = base.toURI().toURL();
outputDir = base.getAbsolutePath() + File.separator + path +
File.separator;
if (!makeOutputDir()) {
throw new IllegalStateException(Localizer.getMessage("jsp.error.outputfolder"));
}
} catch (MalformedURLException e) {
throw new IllegalStateException(Localizer.getMessage("jsp.error.outputfolder"), e);
}
}
protected void completeWebXml() {
if (mapout != null) {
try {
servletout.writeTo(mapout);
mappingout.writeTo(mapout);
if (webxmlLevel >= ALL_WEBXML) {
mapout.write(Localizer.getMessage("jspc.webxml.footer"));
} else if (webxmlLevel >= FRG_WEBXML) {
mapout.write(Localizer.getMessage("jspc.webfrg.footer"));
} else if ((webxmlLevel >= INC_WEBXML) && !addWebXmlMappings) {
mapout.write(Localizer.getMessage("jspc.webinc.footer"));
}
mapout.close();
} catch (IOException ioe) {
// nothing to do if it fails since we are done with it
}
}
}
@Override
public void setAttribute(String name, Object value, int scope) {
if (name == null) {
throw new NullPointerException(Localizer
.getMessage("jsp.error.attribute.null_name"));
}
if (scope == PAGE_SCOPE) {
if (value != null) {
pageAttributes.put(name, value);
} else {
removeAttribute(name, PAGE_SCOPE);
}
} else {
rootJspCtxt.setAttribute(name, value, scope);
}
}
@Override
public Object findAttribute(String name) {
if (name == null) {
throw new NullPointerException(Localizer
.getMessage("jsp.error.attribute.null_name"));
}
Object o = pageAttributes.get(name);
if (o == null) {
o = rootJspCtxt.getAttribute(name, REQUEST_SCOPE);
if (o == null) {
if (getSession() != null) {
o = rootJspCtxt.getAttribute(name, SESSION_SCOPE);
}
if (o == null) {
o = rootJspCtxt.getAttribute(name, APPLICATION_SCOPE);
}
}
}
return o;
}
public static Object handleGetProperty(Object o, String prop)
throws JasperException {
if (o == null) {
throw new JasperException(
Localizer.getMessage("jsp.error.beans.nullbean"));
}
Object value = null;
try {
Method method = getReadMethod(o.getClass(), prop);
value = method.invoke(o, (Object[]) null);
} catch (Exception ex) {
Throwable thr = ExceptionUtils.unwrapInvocationTargetException(ex);
ExceptionUtils.handleThrowable(thr);
throw new JasperException (ex);
}
return value;
}
@Override
public void setAttribute(final String name, final Object attribute) {
if (name == null) {
throw new NullPointerException(Localizer
.getMessage("jsp.error.attribute.null_name"));
}
if (SecurityUtil.isPackageProtectionEnabled()) {
AccessController.doPrivileged(new PrivilegedAction<Void>() {
@Override
public Void run() {
doSetAttribute(name, attribute);
return null;
}
});
} else {
doSetAttribute(name, attribute);
}
}
/**
* Read characters into a portion of an array. This method will block
* until some input is available, an I/O error occurs, or the end of the
* stream is reached.
*
* @param ch Destination buffer
* @param offset Offset at which to start storing characters
* @param length Maximum number of characters to read
*
* @return The number of characters read, or -1 if the end of the
* stream has been reached
*
* @exception IOException If an I/O error occurs
*/
@Override
public int read(char ch[], int offset, int length) throws IOException {
if (length > fBuffer.length) {
length = fBuffer.length;
}
int count = fInputStream.read(fBuffer, 0, length);
for (int i = 0; i < count; i++) {
int b0 = (0xff & fBuffer[i]); // Convert to unsigned
if (b0 > 0x80) {
throw new IOException(Localizer.getMessage("jsp.error.xml.invalidASCII",
Integer.toString(b0)));
}
ch[offset + i] = (char)b0;
}
return count;
}
public static Object getValueFromPropertyEditorManager(
Class<?> attrClass, String attrName, String attrValue)
throws JasperException
{
try {
PropertyEditor propEditor =
PropertyEditorManager.findEditor(attrClass);
if (propEditor != null) {
propEditor.setAsText(attrValue);
return propEditor.getValue();
} else {
throw new IllegalArgumentException(
Localizer.getMessage("jsp.error.beans.propertyeditor.notregistered"));
}
} catch (IllegalArgumentException ex) {
throw new JasperException(
Localizer.getMessage("jsp.error.beans.property.conversion",
attrValue, attrClass.getName(), attrName,
ex.getMessage()));
}
}
@Override
public Object getAttribute(final String name) {
if (name == null) {
throw new NullPointerException(Localizer
.getMessage("jsp.error.attribute.null_name"));
}
if (SecurityUtil.isPackageProtectionEnabled()) {
return AccessController.doPrivileged(
new PrivilegedAction<Object>() {
@Override
public Object run() {
return doGetAttribute(name);
}
});
} else {
return doGetAttribute(name);
}
}
@Override
public Object getAttribute(final String name, final int scope) {
if (name == null) {
throw new NullPointerException(Localizer
.getMessage("jsp.error.attribute.null_name"));
}
if (SecurityUtil.isPackageProtectionEnabled()) {
return AccessController.doPrivileged(
new PrivilegedAction<Object>() {
@Override
public Object run() {
return doGetAttribute(name, scope);
}
});
} else {
return doGetAttribute(name, scope);
}
}
private Object doGetAttribute(String name, int scope) {
switch (scope) {
case PAGE_SCOPE:
return attributes.get(name);
case REQUEST_SCOPE:
return request.getAttribute(name);
case SESSION_SCOPE:
if (session == null) {
throw new IllegalStateException(Localizer
.getMessage("jsp.error.page.noSession"));
}
return session.getAttribute(name);
case APPLICATION_SCOPE:
return context.getAttribute(name);
default:
throw new IllegalArgumentException("Invalid scope");
}
}
@Override
public void setAttribute(final String name, final Object attribute) {
if (name == null) {
throw new NullPointerException(Localizer
.getMessage("jsp.error.attribute.null_name"));
}
if (SecurityUtil.isPackageProtectionEnabled()) {
AccessController.doPrivileged(new PrivilegedAction<Void>() {
@Override
public Void run() {
doSetAttribute(name, attribute);
return null;
}
});
} else {
doSetAttribute(name, attribute);
}
}
@Override
public void setAttribute(final String name, final Object o, final int scope) {
if (name == null) {
throw new NullPointerException(Localizer
.getMessage("jsp.error.attribute.null_name"));
}
if (SecurityUtil.isPackageProtectionEnabled()) {
AccessController.doPrivileged(new PrivilegedAction<Void>() {
@Override
public Void run() {
doSetAttribute(name, o, scope);
return null;
}
});
} else {
doSetAttribute(name, o, scope);
}
}
private void doRemoveAttribute(String name, int scope) {
switch (scope) {
case PAGE_SCOPE:
attributes.remove(name);
break;
case REQUEST_SCOPE:
request.removeAttribute(name);
break;
case SESSION_SCOPE:
if (session == null) {
throw new IllegalStateException(Localizer
.getMessage("jsp.error.page.noSession"));
}
session.removeAttribute(name);
break;
case APPLICATION_SCOPE:
context.removeAttribute(name);
break;
default:
throw new IllegalArgumentException("Invalid scope");
}
}
@Override
public int getAttributesScope(final String name) {
if (name == null) {
throw new NullPointerException(Localizer
.getMessage("jsp.error.attribute.null_name"));
}
if (SecurityUtil.isPackageProtectionEnabled()) {
return (AccessController
.doPrivileged(new PrivilegedAction<Integer>() {
@Override
public Integer run() {
return Integer.valueOf(doGetAttributeScope(name));
}
})).intValue();
} else {
return doGetAttributeScope(name);
}
}
@Override
public Object findAttribute(final String name) {
if (SecurityUtil.isPackageProtectionEnabled()) {
return AccessController.doPrivileged(
new PrivilegedAction<Object>() {
@Override
public Object run() {
if (name == null) {
throw new NullPointerException(Localizer
.getMessage("jsp.error.attribute.null_name"));
}
return doFindAttribute(name);
}
});
} else {
if (name == null) {
throw new NullPointerException(Localizer
.getMessage("jsp.error.attribute.null_name"));
}
return doFindAttribute(name);
}
}
private Enumeration<String> doGetAttributeNamesInScope(int scope) {
switch (scope) {
case PAGE_SCOPE:
return Collections.enumeration(attributes.keySet());
case REQUEST_SCOPE:
return request.getAttributeNames();
case SESSION_SCOPE:
if (session == null) {
throw new IllegalStateException(Localizer
.getMessage("jsp.error.page.noSession"));
}
return session.getAttributeNames();
case APPLICATION_SCOPE:
return context.getAttributeNames();
default:
throw new IllegalArgumentException("Invalid scope");
}
}
@Override
public void removeAttribute(final String name) {
if (name == null) {
throw new NullPointerException(Localizer
.getMessage("jsp.error.attribute.null_name"));
}
if (SecurityUtil.isPackageProtectionEnabled()) {
AccessController.doPrivileged(new PrivilegedAction<Void>() {
@Override
public Void run() {
doRemoveAttribute(name);
return null;
}
});
} else {
doRemoveAttribute(name);
}
}
/**
* Read characters into a portion of an array. This method will block
* until some input is available, an I/O error occurs, or the end of the
* stream is reached.
*
* @param ch Destination buffer
* @param offset Offset at which to start storing characters
* @param length Maximum number of characters to read
*
* @return The number of characters read, or -1 if the end of the
* stream has been reached
*
* @exception IOException If an I/O error occurs
*/
@Override
public int read(char ch[], int offset, int length) throws IOException {
if (length > fBuffer.length) {
length = fBuffer.length;
}
int count = fInputStream.read(fBuffer, 0, length);
for (int i = 0; i < count; i++) {
int b0 = (0xff & fBuffer[i]); // Convert to unsigned
if (b0 > 0x80) {
throw new IOException(Localizer.getMessage("jsp.error.xml.invalidASCII",
Integer.toString(b0)));
}
ch[offset + i] = (char)b0;
}
return count;
}
private void handleMissingResource(HttpServletRequest request,
HttpServletResponse response, String jspUri)
throws ServletException, IOException {
String includeRequestUri =
(String)request.getAttribute(RequestDispatcher.INCLUDE_REQUEST_URI);
if (includeRequestUri != null) {
// This file was included. Throw an exception as
// a response.sendError() will be ignored
String msg =
Localizer.getMessage("jsp.error.file.not.found",jspUri);
// Strictly, filtering this is an application
// responsibility but just in case...
throw new ServletException(SecurityUtil.filter(msg));
} else {
try {
response.sendError(HttpServletResponse.SC_NOT_FOUND,
request.getRequestURI());
} catch (IllegalStateException ise) {
log.error(Localizer.getMessage("jsp.error.file.not.found",
jspUri));
}
}
return;
}
private void doRemoveAttribute(String name, int scope) {
switch (scope) {
case PAGE_SCOPE:
attributes.remove(name);
break;
case REQUEST_SCOPE:
request.removeAttribute(name);
break;
case SESSION_SCOPE:
if (session == null) {
throw new IllegalStateException(Localizer
.getMessage("jsp.error.page.noSession"));
}
session.removeAttribute(name);
break;
case APPLICATION_SCOPE:
context.removeAttribute(name);
break;
default:
throw new IllegalArgumentException("Invalid scope");
}
}
public Class<?> load() throws JasperException {
try {
getJspLoader();
String name = getFQCN();
servletClass = jspLoader.loadClass(name);
} catch (ClassNotFoundException cex) {
throw new JasperException(Localizer.getMessage("jsp.error.unable.load"),
cex);
} catch (Exception ex) {
throw new JasperException(Localizer.getMessage("jsp.error.unable.compile"),
ex);
}
removed = 0;
return servletClass;
}
protected void createOutputDir() {
String path = null;
if (isTagFile()) {
String tagName = tagInfo.getTagClassName();
path = tagName.replace('.', File.separatorChar);
path = path.substring(0, path.lastIndexOf(File.separatorChar));
} else {
path = getServletPackageName().replace('.',File.separatorChar);
}
// Append servlet or tag handler path to scratch dir
try {
File base = options.getScratchDir();
baseUrl = base.toURI().toURL();
outputDir = base.getAbsolutePath() + File.separator + path +
File.separator;
if (!makeOutputDir()) {
throw new IllegalStateException(Localizer.getMessage("jsp.error.outputfolder"));
}
} catch (MalformedURLException e) {
throw new IllegalStateException(Localizer.getMessage("jsp.error.outputfolder"), e);
}
}
protected void initWebXml() {
try {
if (webxmlLevel >= INC_WEBXML) {
mapout = openWebxmlWriter(new File(webxmlFile));
servletout = new CharArrayWriter();
mappingout = new CharArrayWriter();
} else {
mapout = null;
servletout = null;
mappingout = null;
}
if (webxmlLevel >= ALL_WEBXML) {
mapout.write(Localizer.getMessage("jspc.webxml.header"));
mapout.flush();
} else if ((webxmlLevel>= INC_WEBXML) && !addWebXmlMappings) {
mapout.write(Localizer.getMessage("jspc.webinc.header"));
mapout.flush();
}
} catch (IOException ioe) {
mapout = null;
servletout = null;
mappingout = null;
}
}
protected void completeWebXml() {
if (mapout != null) {
try {
servletout.writeTo(mapout);
mappingout.writeTo(mapout);
if (webxmlLevel >= ALL_WEBXML) {
mapout.write(Localizer.getMessage("jspc.webxml.footer"));
} else if ((webxmlLevel >= INC_WEBXML) && !addWebXmlMappings) {
mapout.write(Localizer.getMessage("jspc.webinc.footer"));
}
mapout.close();
} catch (IOException ioe) {
// noting to do if it fails since we are done with it
}
}
}
@Override
public void setAttribute(String name, Object value, int scope) {
if (name == null) {
throw new NullPointerException(Localizer
.getMessage("jsp.error.attribute.null_name"));
}
if (scope == PAGE_SCOPE) {
if (value != null) {
pageAttributes.put(name, value);
} else {
removeAttribute(name, PAGE_SCOPE);
}
} else {
rootJspCtxt.setAttribute(name, value, scope);
}
}
@Override
public int getAttributesScope(final String name) {
if (name == null) {
throw new NullPointerException(Localizer
.getMessage("jsp.error.attribute.null_name"));
}
if (SecurityUtil.isPackageProtectionEnabled()) {
return (AccessController
.doPrivileged(new PrivilegedAction<Integer>() {
@Override
public Integer run() {
return Integer.valueOf(doGetAttributeScope(name));
}
})).intValue();
} else {
return doGetAttributeScope(name);
}
}
public static Object handleGetProperty(Object o, String prop)
throws JasperException {
if (o == null) {
throw new JasperException(
Localizer.getMessage("jsp.error.beans.nullbean"));
}
Object value = null;
try {
Method method = getReadMethod(o.getClass(), prop);
value = method.invoke(o, (Object[]) null);
} catch (Exception ex) {
Throwable thr = ExceptionUtils.unwrapInvocationTargetException(ex);
ExceptionUtils.handleThrowable(thr);
throw new JasperException (ex);
}
return value;
}