com.webfirmframework.wffweb.css.file.AbstractCssFileBlock Maven / Gradle / Ivy
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A java framework to develop web applications
/*
* Copyright 2014-2019 Web Firm Framework
*
* 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.
* @author WFF
*/
package com.webfirmframework.wffweb.css.file;
import java.util.Collection;
import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.Map;
import java.util.Set;
import com.webfirmframework.wffweb.clone.CloneUtil;
import com.webfirmframework.wffweb.css.core.CssProperty;
/**
*
* @author WFF
* @since 1.0.0
*/
public abstract class AbstractCssFileBlock implements CssFileBlock {
private static final long serialVersionUID = 1_0_0L;
private final Set cssProperties;
private final Map cssPropertiesAsMap;
private final Set cssFiles;
private String selectors;
private volatile boolean modified;
private volatile boolean loadedOnce;
private boolean excludeCssBlock;
@SuppressWarnings("unused")
private AbstractCssFileBlock() {
}
public AbstractCssFileBlock(final String selectors) {
this.selectors = selectors;
}
{
cssFiles = new LinkedHashSet<>();
cssPropertiesAsMap = new LinkedHashMap<>();
cssProperties = new LinkedHashSet() {
private static final long serialVersionUID = 1_0_0L;
private StringBuilder toStringBuilder;
{
toStringBuilder = new StringBuilder();
}
@Override
public boolean add(final CssProperty cssProperty) {
final boolean added = super.add(cssProperty);
if (added) {
setModified(added);
cssPropertiesAsMap.put(cssProperty.getCssName(),
cssProperty);
}
return added;
}
@Override
public boolean addAll(
final Collection cssProperties) {
final boolean addedAll = super.addAll(cssProperties);
if (addedAll) {
setModified(addedAll);
for (final CssProperty cssProperty : cssProperties) {
cssPropertiesAsMap.put(cssProperty.getCssName(),
cssProperty);
}
}
return addedAll;
}
@Override
public boolean remove(final Object o) {
final boolean removed = super.remove(o);
if (removed) {
setModified(removed);
if (o instanceof CssProperty) {
cssPropertiesAsMap
.remove(((CssProperty) o).getCssName());
}
}
return removed;
}
@Override
public boolean removeAll(final Collection c) {
final boolean removedAll = super.removeAll(c);
if (removedAll) {
setModified(removedAll);
for (final Object object : c) {
if (object instanceof CssProperty) {
cssPropertiesAsMap.remove(
((CssProperty) object).getCssName());
}
}
}
return removedAll;
}
@Override
public void clear() {
setModified(true);
super.clear();
cssPropertiesAsMap.clear();
}
@Override
public String toString() {
if (modified) {
synchronized (toStringBuilder) {
if (modified) {
toStringBuilder.delete(0, toStringBuilder.length());
for (final CssProperty cssProperty : this) {
toStringBuilder.append(cssProperty.getCssName())
.append(':')
.append(cssProperty.getCssValue())
.append(';');
}
setModified(false);
}
}
}
return toStringBuilder.toString();
}
};
}
protected abstract void load(Set cssProperties);
void addCssFile(final CssFile cssFile) {
cssFiles.add(cssFile);
}
void removeCssFile(final CssFile cssFile) {
cssFiles.remove(cssFile);
}
@Override
public String toString() {
return super.toString();
}
/**
* @return
* @since 1.0.0
* @author WFF
*/
public String toCssString() {
if (!loadedOnce) {
synchronized (cssProperties) {
if (!loadedOnce) {
cssProperties.clear();
load(cssProperties);
loadedOnce = true;
setModified(true);
}
}
}
return selectors + "{" + cssProperties.toString() + "}";
}
/**
* @param rebuild
* @return the css string.
* @since 1.0.0
* @author WFF
*/
public String toCssString(final boolean rebuild) {
if (rebuild || !loadedOnce) {
synchronized (cssProperties) {
if (rebuild || !loadedOnce) {
cssProperties.clear();
load(cssProperties);
loadedOnce = true;
setModified(true);
}
}
}
return selectors + "{" + cssProperties.toString() + "}";
}
@Override
public AbstractCssFileBlock clone() throws CloneNotSupportedException {
return CloneUtil.deepClone(this);
}
/**
* @return the cssProperties
* @since 1.0.0
* @author WFF
*/
public Set getCssProperties() {
if (!loadedOnce) {
synchronized (cssProperties) {
if (!loadedOnce) {
cssProperties.clear();
load(cssProperties);
loadedOnce = true;
setModified(true);
}
}
}
return cssProperties;
}
/**
* @param modified
* the modified to set
* @since 1.0.0
* @author WFF
*/
private void setModified(final boolean modified) {
if (modified) {
for (final CssFile cssFile : cssFiles) {
cssFile.setModified(true);
}
}
this.modified = modified;
}
/**
* @return the selectors
* @since 1.0.0
* @author WFF
*/
public String getSelectors() {
return selectors;
}
/**
* rebuild true to rebuild, the load method will be invoked again.
*
* @return the cssProperties as map with key as the cssName and value as
* {@code CssProperty}.
* @since 1.0.0
* @author WFF
*/
Map getCssPropertiesAsMap(final boolean rebuild) {
if (rebuild || !loadedOnce) {
synchronized (cssProperties) {
if (rebuild || !loadedOnce) {
cssProperties.clear();
load(cssProperties);
loadedOnce = true;
setModified(true);
}
}
}
return cssPropertiesAsMap;
}
/**
* @return the excludeCssBlock true if the css block has been excluded, i.e.
* it will not be contained in the generated css.
*/
public boolean isExcludeCssBlock() {
return excludeCssBlock;
}
/**
* @param excludeCssBlock
* the excludeCssBlock to set. If it is set to
* true, then this css block will not be
* contained in the generated css.
*/
protected void setExcludeCssBlock(final boolean excludeCssBlock) {
this.excludeCssBlock = excludeCssBlock;
}
}
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