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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.tools.ant.taskdefs;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import org.apache.tools.ant.AntTypeDefinition;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.ComponentHelper;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.ProjectHelper;
import org.apache.tools.ant.RuntimeConfigurable;
import org.apache.tools.ant.Task;
import org.apache.tools.ant.TaskContainer;
import org.apache.tools.ant.UnknownElement;
/**
* Describe class MacroDef here.
*
* @since Ant 1.6
*/
public class MacroDef extends AntlibDefinition {
private NestedSequential nestedSequential;
private String name;
private boolean backTrace = true;
private List attributes = new ArrayList();
private Map elements = new HashMap();
private String textName = null;
private Text text = null;
private boolean hasImplicitElement = false;
/**
* Name of the definition
* @param name the name of the definition
*/
public void setName(String name) {
this.name = name;
}
/**
* Add the text element.
* @param text the nested text element to add
* @since ant 1.6.1
*/
public void addConfiguredText(Text text) {
if (this.text != null) {
throw new BuildException(
"Only one nested text element allowed");
}
if (text.getName() == null) {
throw new BuildException(
"the text nested element needed a \"name\" attribute");
}
// Check if used by attributes
for (Attribute attribute : attributes) {
if (text.getName().equals(attribute.getName())) {
throw new BuildException(
"the name \"" + text.getName()
+ "\" is already used as an attribute");
}
}
this.text = text;
this.textName = text.getName();
}
/**
* @return the nested text element
* @since ant 1.6.1
*/
public Text getText() {
return text;
}
/**
* Set the backTrace attribute.
*
* @param backTrace if true and the macro instance generates
* an error, a backtrace of the location within
* the macro and call to the macro will be output.
* if false, only the location of the call to the
* macro will be shown. Default is true.
* @since ant 1.7
*/
public void setBackTrace(boolean backTrace) {
this.backTrace = backTrace;
}
/**
* @return the backTrace attribute.
* @since ant 1.7
*/
public boolean getBackTrace() {
return backTrace;
}
/**
* This is the sequential nested element of the macrodef.
*
* @return a sequential element to be configured.
*/
public NestedSequential createSequential() {
if (this.nestedSequential != null) {
throw new BuildException("Only one sequential allowed");
}
this.nestedSequential = new NestedSequential();
return this.nestedSequential;
}
/**
* The class corresponding to the sequential nested element.
* This is a simple task container.
*/
public static class NestedSequential implements TaskContainer {
private List nested = new ArrayList();
/**
* Add a task or type to the container.
*
* @param task an unknown element.
*/
public void addTask(Task task) {
nested.add(task);
}
/**
* @return the list of unknown elements
*/
public List getNested() {
return nested;
}
/**
* A compare function to compare this with another
* NestedSequential.
* It calls similar on the nested unknown elements.
*
* @param other the nested sequential to compare with.
* @return true if they are similar, false otherwise
*/
public boolean similar(NestedSequential other) {
final int size = nested.size();
if (size != other.nested.size()) {
return false;
}
for (int i = 0; i < size; ++i) {
UnknownElement me = (UnknownElement) nested.get(i);
UnknownElement o = (UnknownElement) other.nested.get(i);
if (!me.similar(o)) {
return false;
}
}
return true;
}
}
/**
* Convert the nested sequential to an unknown element
* @return the nested sequential as an unknown element.
*/
public UnknownElement getNestedTask() {
UnknownElement ret = new UnknownElement("sequential");
ret.setTaskName("sequential");
ret.setNamespace("");
ret.setQName("sequential");
new RuntimeConfigurable(ret, "sequential");
final int size = nestedSequential.getNested().size();
for (int i = 0; i < size; ++i) {
UnknownElement e =
(UnknownElement) nestedSequential.getNested().get(i);
ret.addChild(e);
ret.getWrapper().addChild(e.getWrapper());
}
return ret;
}
/**
* Gets this macro's attribute (and define?) list.
*
* @return the nested Attributes
*/
public List getAttributes() {
return attributes;
}
/**
* Gets this macro's elements.
*
* @return the map nested elements, keyed by element name, with
* {@link TemplateElement} values.
*/
public Map getElements() {
return elements;
}
/**
* Check if a character is a valid character for an element or
* attribute name.
*
* @param c the character to check
* @return true if the character is a letter or digit or '.' or '-'
* attribute name
*/
public static boolean isValidNameCharacter(char c) {
// ? is there an xml api for this ?
return Character.isLetterOrDigit(c) || c == '.' || c == '-';
}
/**
* Check if a string is a valid name for an element or attribute.
*
* @param name the string to check
* @return true if the name consists of valid name characters
*/
private static boolean isValidName(String name) {
if (name.length() == 0) {
return false;
}
for (int i = 0; i < name.length(); ++i) {
if (!isValidNameCharacter(name.charAt(i))) {
return false;
}
}
return true;
}
/**
* Add an attribute element.
*
* @param attribute an attribute nested element.
*/
public void addConfiguredAttribute(Attribute attribute) {
if (attribute.getName() == null) {
throw new BuildException(
"the attribute nested element needed a \"name\" attribute");
}
if (attribute.getName().equals(textName)) {
throw new BuildException(
"the name \"" + attribute.getName()
+ "\" has already been used by the text element");
}
final int size = attributes.size();
for (int i = 0; i < size; ++i) {
Attribute att = (Attribute) attributes.get(i);
if (att.getName().equals(attribute.getName())) {
throw new BuildException(
"the name \"" + attribute.getName()
+ "\" has already been used in "
+ "another attribute element");
}
}
attributes.add(attribute);
}
/**
* Add an element element.
*
* @param element an element nested element.
*/
public void addConfiguredElement(TemplateElement element) {
if (element.getName() == null) {
throw new BuildException(
"the element nested element needed a \"name\" attribute");
}
if (elements.get(element.getName()) != null) {
throw new BuildException(
"the element " + element.getName()
+ " has already been specified");
}
if (hasImplicitElement
|| (element.isImplicit() && elements.size() != 0)) {
throw new BuildException(
"Only one element allowed when using implicit elements");
}
hasImplicitElement = element.isImplicit();
elements.put(element.getName(), element);
}
/**
* Create a new ant type based on the embedded tasks and types.
*/
public void execute() {
if (nestedSequential == null) {
throw new BuildException("Missing sequential element");
}
if (name == null) {
throw new BuildException("Name not specified");
}
name = ProjectHelper.genComponentName(getURI(), name);
MyAntTypeDefinition def = new MyAntTypeDefinition(this);
def.setName(name);
def.setClass(MacroInstance.class);
ComponentHelper helper = ComponentHelper.getComponentHelper(
getProject());
helper.addDataTypeDefinition(def);
log("creating macro " + name, Project.MSG_VERBOSE);
}
/**
* An attribute for the MacroDef task.
*
*/
public static class Attribute {
private String name;
private String defaultValue;
private String description;
private boolean doubleExpanding = true;
/**
* The name of the attribute.
*
* @param name the name of the attribute
*/
public void setName(String name) {
if (!isValidName(name)) {
throw new BuildException(
"Illegal name [" + name + "] for attribute");
}
this.name = name.toLowerCase(Locale.ENGLISH);
}
/**
* @return the name of the attribute
*/
public String getName() {
return name;
}
/**
* The default value to use if the parameter is not
* used in the templated instance.
*
* @param defaultValue the default value
*/
public void setDefault(String defaultValue) {
this.defaultValue = defaultValue;
}
/**
* @return the default value, null if not set
*/
public String getDefault() {
return defaultValue;
}
/**
* @param desc Description of the element.
* @since ant 1.6.1
*/
public void setDescription(String desc) {
description = desc;
}
/**
* @return the description of the element, or null if
* no description is available.
* @since ant 1.6.1
*/
public String getDescription() {
return description;
}
/**
* See {@link #isDoubleExpanding} for explanation.
* @param doubleExpanding true to expand twice, false for just once
* @since Ant 1.8.3
*/
public void setDoubleExpanding(boolean doubleExpanding) {
this.doubleExpanding = doubleExpanding;
}
/**
* Determines whether {@link RuntimeConfigurable#maybeConfigure(Project, boolean)} will reevaluate this property.
* For compatibility reasons (#52621) it will, though for most applications (#42046) it should not.
* @return true if expanding twice (the default), false for just once
* @since Ant 1.8.3
*/
public boolean isDoubleExpanding() {
return doubleExpanding;
}
/**
* equality method
*
* @param obj an Object value
* @return a boolean value
*/
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (obj.getClass() != getClass()) {
return false;
}
Attribute other = (Attribute) obj;
if (name == null) {
if (other.name != null) {
return false;
}
} else if (!name.equals(other.name)) {
return false;
}
if (defaultValue == null) {
if (other.defaultValue != null) {
return false;
}
} else if (!defaultValue.equals(other.defaultValue)) {
return false;
}
return true;
}
/**
* @return a hash code value for this object.
*/
public int hashCode() {
return objectHashCode(defaultValue) + objectHashCode(name);
}
}
/**
* A nested text element for the MacroDef task.
* @since ant 1.6.1
*/
public static class Text {
private String name;
private boolean optional;
private boolean trim;
private String description;
private String defaultString;
/**
* The name of the attribute.
*
* @param name the name of the attribute
*/
public void setName(String name) {
if (!isValidName(name)) {
throw new BuildException(
"Illegal name [" + name + "] for attribute");
}
this.name = name.toLowerCase(Locale.ENGLISH);
}
/**
* @return the name of the attribute
*/
public String getName() {
return name;
}
/**
* The optional attribute of the text element.
*
* @param optional if true this is optional
*/
public void setOptional(boolean optional) {
this.optional = optional;
}
/**
* @return true if the text is optional
*/
public boolean getOptional() {
return optional;
}
/**
* The trim attribute of the text element.
*
* @param trim if true this String.trim() is called on
* the contents of the text element.
*/
public void setTrim(boolean trim) {
this.trim = trim;
}
/**
* @return true if the text is trim
*/
public boolean getTrim() {
return trim;
}
/**
* @param desc Description of the text.
*/
public void setDescription(String desc) {
description = desc;
}
/**
* @return the description of the text, or null if
* no description is available.
*/
public String getDescription() {
return description;
}
/**
* @param defaultString default text for the string.
*/
public void setDefault(String defaultString) {
this.defaultString = defaultString;
}
/**
* @return the default text if set, null otherwise.
*/
public String getDefault() {
return defaultString;
}
/**
* equality method
*
* @param obj an Object value
* @return a boolean value
*/
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (obj.getClass() != getClass()) {
return false;
}
Text other = (Text) obj;
return safeCompare(name, other.name)
&& optional == other.optional
&& trim == other.trim
&& safeCompare(defaultString, other.defaultString);
}
/**
* @return a hash code value for this object.
*/
public int hashCode() {
return objectHashCode(name);
}
}
private static boolean safeCompare(Object a, Object b) {
return a == null ? b == null : a.equals(b);
}
/**
* A nested element for the MacroDef task.
*/
public static class TemplateElement {
private String name;
private String description;
private boolean optional = false;
private boolean implicit = false;
/**
* Sets the name of this element.
*
* @param name the name of the element
*/
public void setName(String name) {
if (!isValidName(name)) {
throw new BuildException(
"Illegal name [" + name + "] for macro element");
}
this.name = name.toLowerCase(Locale.ENGLISH);
}
/**
* Gets the name of this element.
*
* @return the name of the element.
*/
public String getName() {
return name;
}
/**
* Sets a textual description of this element,
* for build documentation purposes only.
*
* @param desc Description of the element.
* @since ant 1.6.1
*/
public void setDescription(String desc) {
description = desc;
}
/**
* Gets the description of this element.
*
* @return the description of the element, or null if
* no description is available.
* @since ant 1.6.1
*/
public String getDescription() {
return description;
}
/**
* Sets whether this element is optional.
*
* @param optional if true this element may be left out, default
* is false.
*/
public void setOptional(boolean optional) {
this.optional = optional;
}
/**
* Gets whether this element is optional.
*
* @return the optional attribute
*/
public boolean isOptional() {
return optional;
}
/**
* Sets whether this element is implicit.
*
* @param implicit if true this element may be left out, default
* is false.
*/
public void setImplicit(boolean implicit) {
this.implicit = implicit;
}
/**
* Gets whether this element is implicit.
*
* @return the implicit attribute
*/
public boolean isImplicit() {
return implicit;
}
/**
* equality method.
*
* @param obj an Object value
* @return a boolean value
*/
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (obj == null || !obj.getClass().equals(getClass())) {
return false;
}
TemplateElement t = (TemplateElement) obj;
return
(name == null ? t.name == null : name.equals(t.name))
&& optional == t.optional
&& implicit == t.implicit;
}
/**
* @return a hash code value for this object.
*/
public int hashCode() {
return objectHashCode(name)
+ (optional ? 1 : 0) + (implicit ? 1 : 0);
}
} // END static class TemplateElement
/**
* same or similar equality method for macrodef, ignores project and
* runtime info.
*
* @param obj an Object value
* @param same if true test for sameness, otherwise just similar
* @return a boolean value
*/
private boolean sameOrSimilar(Object obj, boolean same) {
if (obj == this) {
return true;
}
if (obj == null) {
return false;
}
if (!obj.getClass().equals(getClass())) {
return false;
}
MacroDef other = (MacroDef) obj;
if (name == null) {
return other.name == null;
}
if (!name.equals(other.name)) {
return false;
}
// Allow two macro definitions with the same location
// to be treated as similar - bugzilla 31215
if (other.getLocation() != null
&& other.getLocation().equals(getLocation())
&& !same) {
return true;
}
if (text == null) {
if (other.text != null) {
return false;
}
} else {
if (!text.equals(other.text)) {
return false;
}
}
if (getURI() == null || getURI().equals("")
|| getURI().equals(ProjectHelper.ANT_CORE_URI)) {
if (!(other.getURI() == null || other.getURI().equals("")
|| other.getURI().equals(ProjectHelper.ANT_CORE_URI))) {
return false;
}
} else {
if (!getURI().equals(other.getURI())) {
return false;
}
}
if (!nestedSequential.similar(other.nestedSequential)) {
return false;
}
if (!attributes.equals(other.attributes)) {
return false;
}
if (!elements.equals(other.elements)) {
return false;
}
return true;
}
/**
* Similar method for this definition
*
* @param obj another definition
* @return true if the definitions are similar
*/
public boolean similar(Object obj) {
return sameOrSimilar(obj, false);
}
/**
* Equality method for this definition
*
* @param obj another definition
* @return true if the definitions are the same
*/
public boolean sameDefinition(Object obj) {
return sameOrSimilar(obj, true);
}
/**
* extends AntTypeDefinition, on create
* of the object, the template macro definition
* is given.
*/
private static class MyAntTypeDefinition extends AntTypeDefinition {
private MacroDef macroDef;
/**
* Creates a new MyAntTypeDefinition instance.
*
* @param macroDef a MacroDef value
*/
public MyAntTypeDefinition(MacroDef macroDef) {
this.macroDef = macroDef;
}
/**
* Create an instance of the definition.
* The instance may be wrapped in a proxy class.
* @param project the current project
* @return the created object
*/
public Object create(Project project) {
Object o = super.create(project);
if (o == null) {
return null;
}
((MacroInstance) o).setMacroDef(macroDef);
return o;
}
/**
* Equality method for this definition
*
* @param other another definition
* @param project the current project
* @return true if the definitions are the same
*/
public boolean sameDefinition(AntTypeDefinition other, Project project) {
if (!super.sameDefinition(other, project)) {
return false;
}
MyAntTypeDefinition otherDef = (MyAntTypeDefinition) other;
return macroDef.sameDefinition(otherDef.macroDef);
}
/**
* Similar method for this definition
*
* @param other another definition
* @param project the current project
* @return true if the definitions are the same
*/
public boolean similarDefinition(
AntTypeDefinition other, Project project) {
if (!super.similarDefinition(other, project)) {
return false;
}
MyAntTypeDefinition otherDef = (MyAntTypeDefinition) other;
return macroDef.similar(otherDef.macroDef);
}
}
private static int objectHashCode(Object o) {
if (o == null) {
return 0;
} else {
return o.hashCode();
}
}
}
