// Copyright (c) 2003-2014, Jodd Team (jodd.org). All Rights Reserved.
package jodd.madvoc.injector;
import jodd.madvoc.ActionRequest;
import jodd.madvoc.ScopeData;
import jodd.madvoc.ScopeType;
import jodd.madvoc.component.ScopeDataResolver;
/**
* Abstract base class for HTTP scopes injection.
*/
public abstract class BaseScopeInjector {
protected final ScopeDataResolver scopeDataResolver;
protected final ScopeType scopeType;
/**
* Creates scope injector for provided {@link jodd.madvoc.ScopeType}.
*/
protected BaseScopeInjector(ScopeType scopeType, ScopeDataResolver scopeDataResolver) {
this.scopeType = scopeType;
this.scopeDataResolver = scopeDataResolver;
}
// ---------------------------------------------------------------- flags
protected boolean silent = false;
/**
* Returns <code>true</code> if injection is silent.
*/
public boolean isSilent() {
return silent;
}
/**
* Defines if injection should throw exceptions or to be silent.
*/
public void setSilent(boolean silent) {
this.silent = silent;
}
// ---------------------------------------------------------------- target
/**
* Sets target bean property, optionally creates instance if doesn't exist.
*/
protected void setTargetProperty(Target target, String name, Object value) {
target.writeValue(name, value, silent);
}
/**
* Reads target property.
*/
protected Object getTargetProperty(Target target, ScopeData.Out out) {
if (out.target == null) {
return target.readValue(out.name);
} else {
return target.readValue(out.target);
}
}
// ---------------------------------------------------------------- matched property
/**
* Returns matched property name or <code>null</code> if name is not matched.
* <p>
* Matches if attribute name matches the required field name. If the match is positive,
* injection or outjection is performed on the field.
* <p>
* Parameter name matches field name if param name starts with field name and has
* either '.' or '[' after the field name.
* <p>
* Returns real property name, once when name is matched.
*/
protected String getMatchedPropertyName(ScopeData.In in, String attrName) {
// match
if (attrName.startsWith(in.name) == false) {
return null;
}
int requiredLen = in.name.length();
if (attrName.length() >= requiredLen + 1) {
char c = attrName.charAt(requiredLen);
if ((c != '.') && (c != '[')) {
return null;
}
}
// get param
if (in.target == null) {
return attrName;
}
return in.target + attrName.substring(in.name.length());
}
// ---------------------------------------------------------------- delegates
/**
* Returns scope data from action request and for current scope type.
*/
public ScopeData[] lookupScopeData(ActionRequest actionRequest) {
return actionRequest.getActionConfig().scopeData[scopeType.value()];
}
/**
* Returns IN data for current scope type.
*/
public ScopeData.In[] lookupInData(ScopeData[] scopeData) {
if (scopeData == null) {
return null;
}
ScopeData sd = scopeData[scopeType.value()];
if (sd == null) {
return null;
}
return sd.in;
}
}