com.google.gwt.uibinder.rebind.XMLElement Maven / Gradle / Ivy
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/*
* Copyright 2008 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.google.gwt.uibinder.rebind;
import com.google.gwt.core.ext.UnableToCompleteException;
import com.google.gwt.core.ext.typeinfo.JClassType;
import com.google.gwt.core.ext.typeinfo.JType;
import com.google.gwt.core.ext.typeinfo.TypeOracle;
import com.google.gwt.core.ext.typeinfo.TypeOracleException;
import com.google.gwt.dom.client.Style.Unit;
import com.google.gwt.resources.client.ImageResource;
import com.google.gwt.safehtml.shared.SafeHtml;
import com.google.gwt.uibinder.attributeparsers.AttributeParser;
import com.google.gwt.uibinder.attributeparsers.AttributeParsers;
import com.google.gwt.uibinder.elementparsers.SimpleInterpeter;
import org.w3c.dom.Attr;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.Text;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
/**
* A wrapper for {@link Element} that limits the way parsers can interact with
* the XML document, and provides some convenience methods.
*
* The main function of this wrapper is to ensure that parsers can only read
* elements and attributes by 'consuming' them, which removes the given value.
* This allows for a natural hierarchy among parsers -- more specific parsers
* will run first, and if they consume a value, less-specific parsers will not
* see it.
*/
public class XMLElement {
/**
* Callback interface used by {@link #consumeInnerHtml(Interpreter)} and
* {@link #consumeChildElements(Interpreter)}.
*/
public interface Interpreter {
/**
* Given an XMLElement, return its filtered value.
*
* @throws UnableToCompleteException on error
*/
T interpretElement(XMLElement elem) throws UnableToCompleteException;
}
/**
* Extends {@link Interpreter} with a method to be called after all elements
* have been processed.
*/
public interface PostProcessingInterpreter extends Interpreter {
String postProcess(String consumedText) throws UnableToCompleteException;
}
/**
* Represents the source location where the XMLElement was declared.
*/
public static class Location {
private final String systemId;
private final int lineNumber;
public Location(String systemId, int lineNumber) {
this.systemId = systemId;
this.lineNumber = lineNumber;
}
public int getLineNumber() {
return lineNumber;
}
public String getSystemId() {
return systemId;
}
/**
* For debugging use only.
*/
@Override
public String toString() {
return systemId + ":" + lineNumber;
}
}
static final String LOCATION_KEY = "gwtLocation";
private static final Set NO_END_TAG = new HashSet();
private static final String[] EMPTY = new String[]{};
private static void clearChildren(Element elem) {
// TODO(rjrjr) I'm nearly positive that anywhere this is called
// we should instead be calling assertNoBody
Node child;
while ((child = elem.getFirstChild()) != null) {
elem.removeChild(child);
}
}
private final Element elem;
private final AttributeParsers attributeParsers;
private final TypeOracle oracle;
private final MortalLogger logger;
private final String debugString;
private final DesignTimeUtils designTime;
private final XMLElementProvider provider;
private JType booleanType;
private JType imageResourceType;
private JType doubleType;
private JType intType;
private JType safeHtmlType;
private JType stringType;
{
// from com/google/gxp/compiler/schema/html.xml
NO_END_TAG.add("area");
NO_END_TAG.add("base");
NO_END_TAG.add("basefont");
NO_END_TAG.add("br");
NO_END_TAG.add("col");
NO_END_TAG.add("frame");
NO_END_TAG.add("hr");
NO_END_TAG.add("img");
NO_END_TAG.add("input");
NO_END_TAG.add("isindex");
NO_END_TAG.add("link");
NO_END_TAG.add("meta");
NO_END_TAG.add("param");
NO_END_TAG.add("wbr");
}
XMLElement(Element elem, AttributeParsers attributeParsers, TypeOracle oracle,
MortalLogger logger, DesignTimeUtils designTime, XMLElementProvider provider) {
this.elem = elem;
this.attributeParsers = attributeParsers;
this.oracle = oracle;
this.logger = logger;
this.designTime = designTime;
this.provider = provider;
this.debugString = getOpeningTag();
}
/**
* Ensure that the receiver has no attributes left.
*
* @throws UnableToCompleteException if it does
*/
public void assertNoAttributes() throws UnableToCompleteException {
int numAtts = getAttributeCount();
if (numAtts == 0) {
return;
}
StringBuilder b = new StringBuilder();
for (int i = 0; i < numAtts; i++) {
if (i > 0) {
b.append(", ");
}
b.append('"').append(getAttribute(i).getName()).append('"');
}
logger.die(this, "Unexpected attributes: %s", b);
}
/**
* Require that the receiver's body is empty of text and has no child nodes.
*
* @throws UnableToCompleteException if it isn't
*/
public void assertNoBody() throws UnableToCompleteException {
consumeChildElements(new Interpreter() {
public Boolean interpretElement(XMLElement elem) throws UnableToCompleteException {
logger.die(elem, "Found unexpected child element");
return false; // unreachable
}
});
assertNoText();
}
/**
* Require that the receiver's body is empty of text.
*
* @throws UnableToCompleteException if it isn't
*/
public void assertNoText() throws UnableToCompleteException {
SimpleInterpeter nullInterpreter = new SimpleInterpeter(null);
String s = consumeInnerTextEscapedAsHtmlStringLiteral(nullInterpreter);
if (!"".equals(s)) {
logger.die(this, "Unexpected text in element: \"%s\"", s);
}
}
/**
* Consumes the given attribute as a literal or field reference. The type
* parameter is required to determine how the value is parsed and validated.
*
* @param name the attribute's full name (including prefix)
* @param type the type this attribute is expected to provide
* @return the attribute's value as a Java expression, or null if it is not
* set
* @throws UnableToCompleteException on parse failure
*/
public String consumeAttribute(String name, JType type) throws UnableToCompleteException {
return consumeAttributeWithDefault(name, null, type);
}
/**
* Consumes the given attribute as a literal or field reference. The type
* parameter is required to determine how the value is parsed and validated.
*
* @param name the attribute's full name (including prefix)
* @param defaultValue the value to @return if the attribute was unset
* @param type the type this attribute is expected to provide
* @return the attribute's value as a Java expression, or the given default if
* it was unset
* @throws UnableToCompleteException on parse failure
*/
public String consumeAttributeWithDefault(String name, String defaultValue, JType type)
throws UnableToCompleteException {
return consumeAttributeWithDefault(name, defaultValue, new JType[]{type});
}
/**
* Like {@link #consumeAttributeWithDefault(String, String, JType)}, but
* accommodates more complex type signatures.
*/
public String consumeAttributeWithDefault(String name, String defaultValue, JType... types)
throws UnableToCompleteException {
if (!hasAttribute(name)) {
if (defaultValue != null) {
designTime.putAttribute(this, name + ".default", defaultValue);
}
return defaultValue;
}
AttributeParser parser = attributeParsers.getParser(types);
return consumeAttributeWithParser(name, parser);
}
/**
* Convenience method for parsing the named attribute as a boolean value or
* reference.
*
* @return an expression that will evaluate to a boolean value in the
* generated code, or null if there is no such attribute
*
* @throws UnableToCompleteException on unparseable value
*/
public String consumeBooleanAttribute(String name) throws UnableToCompleteException {
return consumeAttribute(name, getBooleanType());
}
/**
* Convenience method for parsing the named attribute as a boolean value or
* reference.
*
* @param defaultValue value to return if attribute was not set
* @return an expression that will evaluate to a boolean value in the
* generated code, or defaultValue if there is no such attribute
*
* @throws UnableToCompleteException on unparseable value
*/
public String consumeBooleanAttribute(String name, boolean defaultValue)
throws UnableToCompleteException {
return consumeAttributeWithDefault(name, Boolean.toString(defaultValue), getBooleanType());
}
/**
* Consumes the named attribute as a boolean expression. This will not accept
* {field.reference} expressions. Useful for values that must be resolved at
* compile time, such as generated annotation values.
*
* @return {@link Boolean#TRUE}, {@link Boolean#FALSE}, or null if no such
* attribute
*
* @throws UnableToCompleteException on unparseable value
*/
public Boolean consumeBooleanConstantAttribute(String name) throws UnableToCompleteException {
String value = consumeRawAttribute(name);
if (value == null) {
return null;
}
if (value.equals("true") || value.equals("false")) {
return Boolean.valueOf(value);
}
logger.die(this, "%s must be \"true\" or \"false\"", name);
return null; // unreachable
}
/**
* Consumes and returns all child elements.
*
* @throws UnableToCompleteException if extra text nodes are found
*/
public Iterable consumeChildElements() throws UnableToCompleteException {
Iterable rtn = consumeChildElementsNoEmptyCheck();
assertNoText();
return rtn;
}
/**
* Consumes and returns all child elements selected by the interpreter. Note
* that text nodes are not elements, and so are not presented for
* interpretation, and are not consumed.
*
* @param interpreter Should return true for any child that should be consumed
* and returned by the consumeChildElements call
* @throws UnableToCompleteException
*/
public Collection consumeChildElements(Interpreter interpreter)
throws UnableToCompleteException {
List elements = new ArrayList();
List doomed = new ArrayList();
NodeList childNodes = elem.getChildNodes();
for (int i = 0; i < childNodes.getLength(); ++i) {
Node childNode = childNodes.item(i);
if (childNode.getNodeType() == Node.ELEMENT_NODE) {
XMLElement childElement = provider.get((Element) childNode);
if (interpreter.interpretElement(childElement)) {
elements.add(childElement);
doomed.add(childNode);
}
}
}
for (Node n : doomed) {
elem.removeChild(n);
}
return elements;
}
/**
* Convenience method for parsing the named attribute as an ImageResource
* value or reference.
*
* @return an expression that will evaluate to an ImageResource value in the
* generated code, or null if there is no such attribute
* @throws UnableToCompleteException on unparseable value
*/
public String consumeImageResourceAttribute(String name) throws UnableToCompleteException {
return consumeAttribute(name, getImageResourceType());
}
/**
* Consumes all child elements, and returns an HTML interpretation of them.
* Trailing and leading whitespace is trimmed.
*
* Each element encountered will be passed to the given Interpreter for
* possible replacement. Escaping is performed to allow the returned text to
* serve as a Java string literal used as input to a setInnerHTML call.
*
* This call requires an interpreter to make sense of any special children.
* The odds are you want to use
* {@link com.google.gwt.uibinder.elementparsers.HtmlInterpreter} for an HTML
* value, or {@link com.google.gwt.uibinder.elementparsers.TextInterpreter}
* for text.
*
* @param interpreter Called for each element, expected to return a string
* replacement for it, or null if it should be left as is
*/
public String consumeInnerHtml(Interpreter interpreter) throws UnableToCompleteException {
if (interpreter == null) {
throw new NullPointerException("interpreter must not be null");
}
StringBuffer buf = new StringBuffer();
GetInnerHtmlVisitor.getEscapedInnerHtml(elem, buf, interpreter, provider);
clearChildren(elem);
return buf.toString().trim();
}
/**
* Refines {@link #consumeInnerHtml(Interpreter)} to handle
* PostProcessingInterpreter.
*/
public String consumeInnerHtml(PostProcessingInterpreter interpreter)
throws UnableToCompleteException {
String html = consumeInnerHtml((Interpreter) interpreter);
return interpreter.postProcess(html);
}
/**
* Refines {@link #consumeInnerTextEscapedAsHtmlStringLiteral(Interpreter)} to
* handle PostProcessingInterpreter.
*/
public String consumeInnerText(PostProcessingInterpreter interpreter)
throws UnableToCompleteException {
String text = consumeInnerTextEscapedAsHtmlStringLiteral(interpreter);
return interpreter.postProcess(text);
}
/**
* Consumes all child text nodes, and asserts that this element held only
* text. Trailing and leading whitespace is trimmed, and escaped for use as a
* string literal. Notice that HTML entities in the text are also escaped
*
* This call requires an interpreter to make sense of any special children.
* The odds are you want to use
* {@link com.google.gwt.uibinder.elementparsers.TextInterpreter}
*
* @throws UnableToCompleteException If any elements present are not consumed
* by the interpreter
*/
public String consumeInnerTextEscapedAsHtmlStringLiteral(Interpreter interpreter)
throws UnableToCompleteException {
return consumeInnerTextEscapedAsHtmlStringLiteral(interpreter, true);
}
/**
* Consumes all child text nodes, and asserts that this element held only
* text. Trailing and leading whitespace is trimmed, and escaped for use as a
* string literal. Notice that HTML entities in the text are NOT escaped
*
* This call requires an interpreter to make sense of any special children.
* The odds are you want to use
* {@link com.google.gwt.uibinder.elementparsers.TextInterpreter}
*
* @throws UnableToCompleteException If any elements present are not consumed
* by the interpreter
*/
public String consumeInnerTextEscapedAsStringLiteral(Interpreter interpreter)
throws UnableToCompleteException {
return consumeInnerTextEscapedAsHtmlStringLiteral(interpreter, false);
}
/**
* Convenience method for parsing the named attribute as a CSS length value.
*
* @return a (double, Unit) pair literal, an expression that will evaluate to
* such a pair in the generated code, or null if there is no such
* attribute
*
* @throws UnableToCompleteException on unparseable value
*/
public String consumeLengthAttribute(String name) throws UnableToCompleteException {
return consumeAttributeWithDefault(name, null, new JType[]{getDoubleType(), getUnitType()});
}
/**
* Consumes all attributes, and returns a string representing the entire
* opening tag. E.g., ""
*/
public String consumeOpeningTag() {
String rtn = getOpeningTag();
for (int i = getAttributeCount() - 1; i >= 0; i--) {
getAttribute(i).consumeRawValue();
}
return rtn;
}
/**
* Consumes the named attribute and parses it to an unparsed, unescaped array
* of Strings. The strings in the attribute may be comma or space separated
* (or a mix of both).
*
* @return array of String, empty if the attribute was not set.
*/
public String[] consumeRawArrayAttribute(String name) {
String raw = consumeRawAttribute(name, null);
if (raw == null) {
return EMPTY;
}
return raw.split("[,\\s]+");
}
/**
* Consumes the given attribute and returns its trimmed value, or null if it
* was unset. The returned string is not escaped.
*
* @param name the attribute's full name (including prefix)
* @return the attribute's value, or ""
*/
public String consumeRawAttribute(String name) {
if (!elem.hasAttribute(name)) {
return null;
}
String value = elem.getAttribute(name);
elem.removeAttribute(name);
return value.trim();
}
/**
* Consumes the given attribute and returns its trimmed value, or the given
* default value if it was unset. The returned string is not escaped.
*
* @param name the attribute's full name (including prefix)
* @param defaultValue the value to return if the attribute was unset
* @return the attribute's value, or defaultValue
*/
public String consumeRawAttribute(String name, String defaultValue) {
String value = consumeRawAttribute(name);
if (value == null) {
return defaultValue;
}
return value;
}
/**
* Consumes the given required attribute as a literal or field reference. The
* types parameters are required to determine how the value is parsed and
* validated.
*
* @param name the attribute's full name (including prefix)
* @param types the type(s) this attribute is expected to provide
* @return the attribute's value as a Java expression
* @throws UnableToCompleteException on parse failure, or if the attribute is
* empty or unspecified
*/
public String consumeRequiredAttribute(String name, JType... types)
throws UnableToCompleteException {
if (!hasAttribute(name)) {
failRequired(name);
}
AttributeParser parser = attributeParsers.getParser(types);
String value = parser.parse(this, consumeRequiredRawAttribute(name));
designTime.putAttribute(this, name, value);
return value;
}
/**
* Convenience method for parsing the named required attribute as a double
* value or reference.
*
* @return a double literal, an expression that will evaluate to a double
* value in the generated code
*
* @throws UnableToCompleteException on unparseable value, or if the attribute
* is empty or unspecified
*/
public String consumeRequiredDoubleAttribute(String name) throws UnableToCompleteException {
return consumeRequiredAttribute(name, getDoubleType());
}
/**
* Convenience method for parsing the named required attribute as a integer
* value or reference.
*
* @return a integer literal, an expression that will evaluate to a integer
* value in the generated code
*
* @throws UnableToCompleteException on unparseable value, or if the attribute
* is empty or unspecified
*/
public String consumeRequiredIntAttribute(String name) throws UnableToCompleteException {
return consumeRequiredAttribute(name, getIntType());
}
/**
* Consumes the named attribute, or dies if it is missing.
*/
public String consumeRequiredRawAttribute(String name) throws UnableToCompleteException {
String value = consumeRawAttribute(name);
if (value == null) {
failRequired(name);
}
return value;
}
/**
* Convenience method for parsing the named attribute as a
* {@link com.google.gwt.safehtml.shared.SafeHtml SafeHtml} value or
* reference.
*
* @return an expression that will evaluate to a
* {@link com.google.gwt.safehtml.shared.SafeHtml SafeHtml} value in
* the generated code, or null if there is no such attribute
* @throws UnableToCompleteException on unparseable value
*/
public String consumeSafeHtmlAttribute(String name) throws UnableToCompleteException {
return consumeAttribute(name, getSafeHtmlType());
}
/**
* Consumes an attribute as either a SafeUri or a String. Used in HTML
* contexts.
*
* @return an expression that will evaluate to a SafeUri value in the
* generated code, or null if there is no such attribute
* @throws UnableToCompleteException on unparseable value
*/
public String consumeSafeUriOrStringAttribute(String name) throws UnableToCompleteException {
return consumeAttributeWithParser(name, attributeParsers.getSafeUriInHtmlParser());
}
/**
* Consumes a single child element, ignoring any text nodes and throwing an
* exception if no child is found, or more than one child element is found.
*
* @throws UnableToCompleteException on no children, or too many
*/
public XMLElement consumeSingleChildElement() throws UnableToCompleteException {
XMLElement ret = null;
for (XMLElement child : consumeChildElements()) {
if (ret != null) {
logger.die(this, "Element may only contain a single child element, but "
+ "found %s and %s.", ret, child);
}
ret = child;
}
if (ret == null) {
logger.die(this, "Element must have a single child element");
}
return ret;
}
/**
* Consumes the named attribute and parses it to an array of String
* expressions. The strings in the attribute may be comma or space separated
* (or a mix of both).
*
* @return array of String expressions, empty if the attribute was not set.
* @throws UnableToCompleteException on unparseable value
*/
public String[] consumeStringArrayAttribute(String name) throws UnableToCompleteException {
AttributeParser parser = attributeParsers.getParser(getStringType());
String[] strings = consumeRawArrayAttribute(name);
for (int i = 0; i < strings.length; i++) {
strings[i] = parser.parse(this, strings[i]);
}
designTime.putAttribute(this, name, strings);
return strings;
}
/**
* Convenience method for parsing the named attribute as a String value or
* reference.
*
* @return an expression that will evaluate to a String value in the generated
* code, or null if there is no such attribute
* @throws UnableToCompleteException on unparseable value
*/
public String consumeStringAttribute(String name) throws UnableToCompleteException {
return consumeAttribute(name, getStringType());
}
/**
* Convenience method for parsing the named attribute as a String value or
* reference.
*
* @return an expression that will evaluate to a String value in the generated
* code, or the given defaultValue if there is no such attribute
* @throws UnableToCompleteException on unparseable value
*/
public String consumeStringAttribute(String name, String defaultValue)
throws UnableToCompleteException {
return consumeAttributeWithDefault(name, defaultValue, getStringType());
}
/**
* Returns the unprocessed, unescaped, raw inner text of the receiver. Dies if
* the receiver has non-text children.
*
* You probably want to use
* {@link #consumeInnerTextEscapedAsHtmlStringLiteral} instead.
*
* @return the text
* @throws UnableToCompleteException if it held anything other than text nodes
*/
public String consumeUnescapedInnerText() throws UnableToCompleteException {
final NodeList children = elem.getChildNodes();
if (children.getLength() < 1) {
return "";
}
if (children.getLength() > 1 || Node.TEXT_NODE != children.item(0).getNodeType()) {
logger.die(this, "Element must contain only text");
}
Text t = (Text) children.item(0);
return t.getTextContent();
}
/**
* Get the attribute at the given index. If you are consuming attributes,
* remember to traverse them in reverse.
*/
public XMLAttribute getAttribute(int i) {
return new XMLAttribute(XMLElement.this, (Attr) elem.getAttributes().item(i));
}
/**
* Get the attribute with the given name.
*
* @return the attribute, or null if there is none of that name
*/
public XMLAttribute getAttribute(String name) {
Attr attr = elem.getAttributeNode(name);
if (attr == null) {
return null;
}
return new XMLAttribute(this, attr);
}
/**
* Returns the number of attributes this element has.
*/
public int getAttributeCount() {
return elem.getAttributes().getLength();
}
public String getClosingTag() {
if (NO_END_TAG.contains(elem.getTagName())) {
return "";
}
return String.format("", elem.getTagName());
}
/**
* Returns the design time path of this element, in form of indexes from root,
* such as "0/0/1/0".
*/
public String getDesignTimePath() {
return designTime.getPath(elem);
}
/**
* Gets this element's local name (sans namespace prefix).
*/
public String getLocalName() {
return elem.getLocalName();
}
public Location getLocation() {
return (Location) elem.getUserData(LOCATION_KEY);
}
/**
* Gets this element's namespace URI.
*/
public String getNamespaceUri() {
return elem.getNamespaceURI();
}
/**
* Returns the parent element, or null if parent is null or a node type other
* than Element.
*/
public XMLElement getParent() {
Node parent = elem.getParentNode();
if (parent == null || Node.ELEMENT_NODE != parent.getNodeType()) {
return null;
}
return provider.get((Element) parent);
}
public String getPrefix() {
return elem.getPrefix();
}
/**
* Determines whether the element has a given attribute.
*/
public boolean hasAttribute(String name) {
return elem.hasAttribute(name);
}
public boolean hasChildNodes() {
return elem.hasChildNodes();
}
public String lookupPrefix(String prefix) {
return elem.lookupPrefix(prefix);
}
public void setAttribute(String name, String value) {
elem.setAttribute(name, value);
}
@Override
public String toString() {
return debugString;
}
private String consumeAttributeWithParser(String name, AttributeParser parser)
throws UnableToCompleteException {
String value = parser.parse(this, consumeRawAttribute(name));
designTime.putAttribute(this, name, value);
return value;
}
private Iterable consumeChildElementsNoEmptyCheck() {
try {
Iterable rtn = consumeChildElements(new SimpleInterpeter(true));
return rtn;
} catch (UnableToCompleteException e) {
throw new RuntimeException("Impossible exception", e);
}
}
/**
* Consumes all child text nodes, and asserts that this element held only
* text. Trailing and leading whitespace is trimmed, and escaped for use as a
* string literal. If escapeHtmlEntities is true, HTML Entities are also escaped.
*
* This call requires an interpreter to make sense of any special children.
* The odds are you want to use
* {@link com.google.gwt.uibinder.elementparsers.TextInterpreter}
*
* @throws UnableToCompleteException If any elements present are not consumed
* by the interpreter
*/
private String consumeInnerTextEscapedAsHtmlStringLiteral(Interpreter interpreter,
boolean escapeHtmlEntities)
throws UnableToCompleteException {
if (interpreter == null) {
throw new NullPointerException("interpreter must not be null");
}
StringBuffer buf = new StringBuffer();
if (escapeHtmlEntities) {
GetInnerTextVisitor.getHtmlEscapedInnerText(elem, buf, interpreter, provider);
} else {
GetInnerTextVisitor.getEscapedInnerText(elem, buf, interpreter, provider);
}
// Make sure there are no children left but empty husks
for (XMLElement child : consumeChildElementsNoEmptyCheck()) {
if (child.hasChildNodes() || child.getAttributeCount() > 0) {
logger.die(this, "Illegal child %s in a text-only context. "
+ "Perhaps you are trying to use unescaped HTML "
+ "where text is required, as in a HasText widget?", child);
}
}
clearChildren(elem);
return buf.toString().trim();
}
private void failRequired(String name) throws UnableToCompleteException {
logger.die(this, "Missing required attribute \"%s\"", name);
}
private JType getBooleanType() {
if (booleanType == null) {
try {
booleanType = oracle.parse("boolean");
} catch (TypeOracleException e) {
throw new RuntimeException(e);
}
}
return booleanType;
}
private JType getDoubleType() {
if (doubleType == null) {
try {
doubleType = oracle.parse("double");
} catch (TypeOracleException e) {
throw new RuntimeException(e);
}
}
return doubleType;
}
private JType getImageResourceType() {
if (imageResourceType == null) {
imageResourceType = oracle.findType(ImageResource.class.getCanonicalName());
}
return imageResourceType;
}
private JType getIntType() {
if (intType == null) {
try {
intType = oracle.parse("int");
} catch (TypeOracleException e) {
throw new RuntimeException(e);
}
}
return intType;
}
private String getOpeningTag() {
StringBuilder b = new StringBuilder().append("<").append(elem.getTagName());
NamedNodeMap attrs = elem.getAttributes();
for (int i = 0; i < attrs.getLength(); i++) {
Attr attr = (Attr) attrs.item(i);
b.append(String.format(" %s='%s'", attr.getName(),
UiBinderWriter.escapeAttributeText(attr.getValue())));
}
b.append(">");
return b.toString();
}
private JType getSafeHtmlType() {
if (safeHtmlType == null) {
safeHtmlType = oracle.findType(SafeHtml.class.getName());
}
return safeHtmlType;
}
private JType getStringType() {
if (stringType == null) {
stringType = oracle.findType(String.class.getCanonicalName());
}
return stringType;
}
private JClassType getUnitType() {
return oracle.findType(Unit.class.getCanonicalName()).isEnum();
}
}
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