Java Code Examples for org.apache.el.lang.EvaluationContext#setPropertyResolved()
The following examples show how to use
org.apache.el.lang.EvaluationContext#setPropertyResolved() .
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Example 1
| Source File: AstIdentifier.java From Tomcat7.0.67 with Apache License 2.0 | 6 votes |
|
@Override
public void setValue(EvaluationContext ctx, Object value)
throws ELException {
VariableMapper varMapper = ctx.getVariableMapper();
if (varMapper != null) {
ValueExpression expr = varMapper.resolveVariable(this.image);
if (expr != null) {
expr.setValue(ctx.getELContext(), value);
return;
}
}
ctx.setPropertyResolved(false);
ctx.getELResolver().setValue(ctx, null, this.image, value);
if (!ctx.isPropertyResolved()) {
throw new PropertyNotFoundException(MessageFactory.get(
"error.resolver.unhandled.null", this.image));
}
}
Example 2
| Source File: AstIdentifier.java From tomcatsrc with Apache License 2.0 | 6 votes |
|
@Override
public boolean isReadOnly(EvaluationContext ctx) throws ELException {
VariableMapper varMapper = ctx.getVariableMapper();
if (varMapper != null) {
ValueExpression expr = varMapper.resolveVariable(this.image);
if (expr != null) {
return expr.isReadOnly(ctx.getELContext());
}
}
ctx.setPropertyResolved(false);
boolean result = ctx.getELResolver().isReadOnly(ctx, null, this.image);
if (!ctx.isPropertyResolved()) {
throw new PropertyNotFoundException(MessageFactory.get(
"error.resolver.unhandled.null", this.image));
}
return result;
}
Example 3
| Source File: AstIdentifier.java From Tomcat8-Source-Read with MIT License | 6 votes |
|
@Override
public Class<?> getType(EvaluationContext ctx) throws ELException {
VariableMapper varMapper = ctx.getVariableMapper();
if (varMapper != null) {
ValueExpression expr = varMapper.resolveVariable(this.image);
if (expr != null) {
return expr.getType(ctx.getELContext());
}
}
ctx.setPropertyResolved(false);
Class<?> result = ctx.getELResolver().getType(ctx, null, this.image);
if (!ctx.isPropertyResolved()) {
throw new PropertyNotFoundException(MessageFactory.get(
"error.resolver.unhandled.null", this.image));
}
return result;
}
Example 4
| Source File: AstIdentifier.java From tomcatsrc with Apache License 2.0 | 6 votes |
|
@Override
public void setValue(EvaluationContext ctx, Object value)
throws ELException {
VariableMapper varMapper = ctx.getVariableMapper();
if (varMapper != null) {
ValueExpression expr = varMapper.resolveVariable(this.image);
if (expr != null) {
expr.setValue(ctx.getELContext(), value);
return;
}
}
ctx.setPropertyResolved(false);
ctx.getELResolver().setValue(ctx, null, this.image, value);
if (!ctx.isPropertyResolved()) {
throw new PropertyNotFoundException(MessageFactory.get(
"error.resolver.unhandled.null", this.image));
}
}
Example 5
| Source File: AstIdentifier.java From Tomcat8-Source-Read with MIT License | 6 votes |
|
@Override
public boolean isReadOnly(EvaluationContext ctx) throws ELException {
VariableMapper varMapper = ctx.getVariableMapper();
if (varMapper != null) {
ValueExpression expr = varMapper.resolveVariable(this.image);
if (expr != null) {
return expr.isReadOnly(ctx.getELContext());
}
}
ctx.setPropertyResolved(false);
boolean result = ctx.getELResolver().isReadOnly(ctx, null, this.image);
if (!ctx.isPropertyResolved()) {
throw new PropertyNotFoundException(MessageFactory.get(
"error.resolver.unhandled.null", this.image));
}
return result;
}
Example 6
| Source File: AstIdentifier.java From Tomcat7.0.67 with Apache License 2.0 | 6 votes |
|
@Override
public Class<?> getType(EvaluationContext ctx) throws ELException {
VariableMapper varMapper = ctx.getVariableMapper();
if (varMapper != null) {
ValueExpression expr = varMapper.resolveVariable(this.image);
if (expr != null) {
return expr.getType(ctx.getELContext());
}
}
ctx.setPropertyResolved(false);
Class<?> result = ctx.getELResolver().getType(ctx, null, this.image);
if (!ctx.isPropertyResolved()) {
throw new PropertyNotFoundException(MessageFactory.get(
"error.resolver.unhandled.null", this.image));
}
return result;
}
Example 7
| Source File: AstValue.java From tomcatsrc with Apache License 2.0 | 6 votes |
|
@Override
public void setValue(EvaluationContext ctx, Object value)
throws ELException {
Target t = getTarget(ctx);
ctx.setPropertyResolved(false);
ELResolver resolver = ctx.getELResolver();
// coerce to the expected type
Class<?> targetClass = resolver.getType(ctx, t.base, t.property);
if (COERCE_TO_ZERO == true
|| !isAssignable(value, targetClass)) {
resolver.setValue(ctx, t.base, t.property,
ELSupport.coerceToType(value, targetClass));
} else {
resolver.setValue(ctx, t.base, t.property, value);
}
if (!ctx.isPropertyResolved()) {
throw new PropertyNotFoundException(MessageFactory.get(
"error.resolver.unhandled", t.base, t.property));
}
}
Example 8
| Source File: AstValue.java From Tomcat7.0.67 with Apache License 2.0 | 5 votes |
|
@Override
public Class<?> getType(EvaluationContext ctx) throws ELException {
Target t = getTarget(ctx);
ctx.setPropertyResolved(false);
Class<?> result = ctx.getELResolver().getType(ctx, t.base, t.property);
if (!ctx.isPropertyResolved()) {
throw new PropertyNotFoundException(MessageFactory.get(
"error.resolver.unhandled", t.base, t.property));
}
return result;
}
Example 9
| Source File: AstIdentifier.java From Tomcat7.0.67 with Apache License 2.0 | 5 votes |
|
private final MethodExpression getMethodExpression(EvaluationContext ctx)
throws ELException {
Object obj = null;
// case A: ValueExpression exists, getValue which must
// be a MethodExpression
VariableMapper varMapper = ctx.getVariableMapper();
ValueExpression ve = null;
if (varMapper != null) {
ve = varMapper.resolveVariable(this.image);
if (ve != null) {
obj = ve.getValue(ctx);
}
}
// case B: evaluate the identity against the ELResolver, again, must be
// a MethodExpression to be able to invoke
if (ve == null) {
ctx.setPropertyResolved(false);
obj = ctx.getELResolver().getValue(ctx, null, this.image);
}
// finally provide helpful hints
if (obj instanceof MethodExpression) {
return (MethodExpression) obj;
} else if (obj == null) {
throw new MethodNotFoundException("Identity '" + this.image
+ "' was null and was unable to invoke");
} else {
throw new ELException(
"Identity '"
+ this.image
+ "' does not reference a MethodExpression instance, returned type: "
+ obj.getClass().getName());
}
}
Example 10
| Source File: AstIdentifier.java From tomcatsrc with Apache License 2.0 | 5 votes |
|
private final MethodExpression getMethodExpression(EvaluationContext ctx)
throws ELException {
Object obj = null;
// case A: ValueExpression exists, getValue which must
// be a MethodExpression
VariableMapper varMapper = ctx.getVariableMapper();
ValueExpression ve = null;
if (varMapper != null) {
ve = varMapper.resolveVariable(this.image);
if (ve != null) {
obj = ve.getValue(ctx);
}
}
// case B: evaluate the identity against the ELResolver, again, must be
// a MethodExpression to be able to invoke
if (ve == null) {
ctx.setPropertyResolved(false);
obj = ctx.getELResolver().getValue(ctx, null, this.image);
}
// finally provide helpful hints
if (obj instanceof MethodExpression) {
return (MethodExpression) obj;
} else if (obj == null) {
throw new MethodNotFoundException("Identity '" + this.image
+ "' was null and was unable to invoke");
} else {
throw new ELException(
"Identity '"
+ this.image
+ "' does not reference a MethodExpression instance, returned type: "
+ obj.getClass().getName());
}
}
Example 11
| Source File: AstValue.java From tomcatsrc with Apache License 2.0 | 5 votes |
|
@Override
public boolean isReadOnly(EvaluationContext ctx) throws ELException {
Target t = getTarget(ctx);
ctx.setPropertyResolved(false);
boolean result =
ctx.getELResolver().isReadOnly(ctx, t.base, t.property);
if (!ctx.isPropertyResolved()) {
throw new PropertyNotFoundException(MessageFactory.get(
"error.resolver.unhandled", t.base, t.property));
}
return result;
}
Example 12
| Source File: AstValue.java From Tomcat7.0.67 with Apache License 2.0 | 5 votes |
|
@Override
public Object getValue(EvaluationContext ctx) throws ELException {
Object base = this.children[0].getValue(ctx);
int propCount = this.jjtGetNumChildren();
int i = 1;
Object suffix = null;
ELResolver resolver = ctx.getELResolver();
while (base != null && i < propCount) {
suffix = this.children[i].getValue(ctx);
if (i + 1 < propCount &&
(this.children[i+1] instanceof AstMethodParameters)) {
AstMethodParameters mps =
(AstMethodParameters) this.children[i+1];
// This is a method
Object[] paramValues = mps.getParameters(ctx);
base = resolver.invoke(ctx, base, suffix,
getTypesFromValues(paramValues), paramValues);
i+=2;
} else {
// This is a property
if (suffix == null) {
return null;
}
ctx.setPropertyResolved(false);
base = resolver.getValue(ctx, base, suffix);
i++;
}
}
if (!ctx.isPropertyResolved()) {
throw new PropertyNotFoundException(MessageFactory.get(
"error.resolver.unhandled", base, suffix));
}
return base;
}
Example 13
| Source File: AstValue.java From Tomcat8-Source-Read with MIT License | 5 votes |
|
@Override
public Class<?> getType(EvaluationContext ctx) throws ELException {
Target t = getTarget(ctx);
ctx.setPropertyResolved(false);
Class<?> result = ctx.getELResolver().getType(ctx, t.base, t.property);
if (!ctx.isPropertyResolved()) {
throw new PropertyNotFoundException(MessageFactory.get(
"error.resolver.unhandled", t.base, t.property));
}
return result;
}
Example 14
| Source File: AstValue.java From tomcatsrc with Apache License 2.0 | 5 votes |
|
@Override
public Class<?> getType(EvaluationContext ctx) throws ELException {
Target t = getTarget(ctx);
ctx.setPropertyResolved(false);
Class<?> result = ctx.getELResolver().getType(ctx, t.base, t.property);
if (!ctx.isPropertyResolved()) {
throw new PropertyNotFoundException(MessageFactory.get(
"error.resolver.unhandled", t.base, t.property));
}
return result;
}
Example 15
| Source File: AstValue.java From Tomcat8-Source-Read with MIT License | 5 votes |
|
@Override
public boolean isReadOnly(EvaluationContext ctx) throws ELException {
Target t = getTarget(ctx);
ctx.setPropertyResolved(false);
boolean result =
ctx.getELResolver().isReadOnly(ctx, t.base, t.property);
if (!ctx.isPropertyResolved()) {
throw new PropertyNotFoundException(MessageFactory.get(
"error.resolver.unhandled", t.base, t.property));
}
return result;
}
Example 16
| Source File: AstValue.java From Tomcat7.0.67 with Apache License 2.0 | 4 votes |
|
private final Target getTarget(EvaluationContext ctx) throws ELException {
// evaluate expr-a to value-a
Object base = this.children[0].getValue(ctx);
// if our base is null (we know there are more properties to evaluate)
if (base == null) {
throw new PropertyNotFoundException(MessageFactory.get(
"error.unreachable.base", this.children[0].getImage()));
}
// set up our start/end
Object property = null;
int propCount = this.jjtGetNumChildren();
int i = 1;
// Evaluate any properties or methods before our target
ELResolver resolver = ctx.getELResolver();
while (i < propCount) {
if (i + 2 < propCount &&
this.children[i + 1] instanceof AstMethodParameters) {
// Method call not at end of expression
base = resolver.invoke(ctx, base,
this.children[i].getValue(ctx), null,
((AstMethodParameters)
this.children[i + 1]).getParameters(ctx));
i += 2;
} else if (i + 2 == propCount &&
this.children[i + 1] instanceof AstMethodParameters) {
// Method call at end of expression
ctx.setPropertyResolved(false);
property = this.children[i].getValue(ctx);
i += 2;
if (property == null) {
throw new PropertyNotFoundException(MessageFactory.get(
"error.unreachable.property", property));
}
} else if (i + 1 < propCount) {
// Object with property not at end of expression
property = this.children[i].getValue(ctx);
ctx.setPropertyResolved(false);
base = resolver.getValue(ctx, base, property);
i++;
} else {
// Object with property at end of expression
ctx.setPropertyResolved(false);
property = this.children[i].getValue(ctx);
i++;
if (property == null) {
throw new PropertyNotFoundException(MessageFactory.get(
"error.unreachable.property", property));
}
}
if (base == null) {
throw new PropertyNotFoundException(MessageFactory.get(
"error.unreachable.property", property));
}
}
Target t = new Target();
t.base = base;
t.property = property;
return t;
}
Example 17
| Source File: AstValue.java From tomcatsrc with Apache License 2.0 | 4 votes |
|
private final Target getTarget(EvaluationContext ctx) throws ELException {
// evaluate expr-a to value-a
Object base = this.children[0].getValue(ctx);
// if our base is null (we know there are more properties to evaluate)
if (base == null) {
throw new PropertyNotFoundException(MessageFactory.get(
"error.unreachable.base", this.children[0].getImage()));
}
// set up our start/end
Object property = null;
int propCount = this.jjtGetNumChildren();
int i = 1;
// Evaluate any properties or methods before our target
ELResolver resolver = ctx.getELResolver();
while (i < propCount) {
if (i + 2 < propCount &&
this.children[i + 1] instanceof AstMethodParameters) {
// Method call not at end of expression
base = resolver.invoke(ctx, base,
this.children[i].getValue(ctx), null,
((AstMethodParameters)
this.children[i + 1]).getParameters(ctx));
i += 2;
} else if (i + 2 == propCount &&
this.children[i + 1] instanceof AstMethodParameters) {
// Method call at end of expression
ctx.setPropertyResolved(false);
property = this.children[i].getValue(ctx);
i += 2;
if (property == null) {
throw new PropertyNotFoundException(MessageFactory.get(
"error.unreachable.property", property));
}
} else if (i + 1 < propCount) {
// Object with property not at end of expression
property = this.children[i].getValue(ctx);
ctx.setPropertyResolved(false);
base = resolver.getValue(ctx, base, property);
i++;
} else {
// Object with property at end of expression
ctx.setPropertyResolved(false);
property = this.children[i].getValue(ctx);
i++;
if (property == null) {
throw new PropertyNotFoundException(MessageFactory.get(
"error.unreachable.property", property));
}
}
if (base == null) {
throw new PropertyNotFoundException(MessageFactory.get(
"error.unreachable.property", property));
}
}
Target t = new Target();
t.base = base;
t.property = property;
return t;
}
Example 18
| Source File: AstIdentifier.java From Tomcat8-Source-Read with MIT License | 4 votes |
|
@Override
public Object getValue(EvaluationContext ctx) throws ELException {
// Lambda parameters
if (ctx.isLambdaArgument(this.image)) {
return ctx.getLambdaArgument(this.image);
}
// Variable mapper
VariableMapper varMapper = ctx.getVariableMapper();
if (varMapper != null) {
ValueExpression expr = varMapper.resolveVariable(this.image);
if (expr != null) {
return expr.getValue(ctx.getELContext());
}
}
// EL Resolvers
ctx.setPropertyResolved(false);
Object result;
/* Putting the Boolean into the ELContext is part of a performance
* optimisation for ScopedAttributeELResolver. When looking up "foo",
* the resolver can't differentiate between ${ foo } and ${ foo.bar }.
* This is important because the expensive class lookup only needs to
* be performed in the later case. This flag tells the resolver if the
* lookup can be skipped.
*/
if (parent instanceof AstValue) {
ctx.putContext(this.getClass(), Boolean.FALSE);
} else {
ctx.putContext(this.getClass(), Boolean.TRUE);
}
try {
result = ctx.getELResolver().getValue(ctx, null, this.image);
} finally {
// Always reset the flag to false so the optimisation is not applied
// inappropriately
ctx.putContext(this.getClass(), Boolean.FALSE);
}
if (ctx.isPropertyResolved()) {
return result;
}
// Import
result = ctx.getImportHandler().resolveClass(this.image);
if (result != null) {
return new ELClass((Class<?>) result);
}
result = ctx.getImportHandler().resolveStatic(this.image);
if (result != null) {
try {
return ((Class<?>) result).getField(this.image).get(null);
} catch (IllegalArgumentException | IllegalAccessException
| NoSuchFieldException | SecurityException e) {
throw new ELException(e);
}
}
throw new PropertyNotFoundException(MessageFactory.get(
"error.resolver.unhandled.null", this.image));
}
Example 19
| Source File: AstValue.java From Tomcat8-Source-Read with MIT License | 4 votes |
|
@Override
public Object getValue(EvaluationContext ctx) throws ELException {
Object base = this.children[0].getValue(ctx);
int propCount = this.jjtGetNumChildren();
int i = 1;
Object suffix = null;
ELResolver resolver = ctx.getELResolver();
while (base != null && i < propCount) {
suffix = this.children[i].getValue(ctx);
if (i + 1 < propCount &&
(this.children[i+1] instanceof AstMethodParameters)) {
AstMethodParameters mps =
(AstMethodParameters) this.children[i+1];
if (base instanceof Optional && "orElseGet".equals(suffix) &&
mps.jjtGetNumChildren() == 1) {
Node paramFoOptional = mps.jjtGetChild(0);
if (!(paramFoOptional instanceof AstLambdaExpression ||
paramFoOptional instanceof LambdaExpression)) {
throw new ELException(MessageFactory.get(
"stream.optional.paramNotLambda", suffix));
}
}
// This is a method
Object[] paramValues = mps.getParameters(ctx);
base = resolver.invoke(ctx, base, suffix,
getTypesFromValues(paramValues), paramValues);
i+=2;
} else {
// This is a property
if (suffix == null) {
return null;
}
ctx.setPropertyResolved(false);
base = resolver.getValue(ctx, base, suffix);
i++;
}
}
if (!ctx.isPropertyResolved()) {
throw new PropertyNotFoundException(MessageFactory.get(
"error.resolver.unhandled", base, suffix));
}
return base;
}
Example 20
| Source File: AstValue.java From Tomcat8-Source-Read with MIT License | 4 votes |
|
private final Target getTarget(EvaluationContext ctx) throws ELException {
// evaluate expr-a to value-a
Object base = this.children[0].getValue(ctx);
// if our base is null (we know there are more properties to evaluate)
if (base == null) {
throw new PropertyNotFoundException(MessageFactory.get(
"error.unreachable.base", this.children[0].getImage()));
}
// set up our start/end
Object property = null;
int propCount = this.jjtGetNumChildren();
int i = 1;
// Evaluate any properties or methods before our target
ELResolver resolver = ctx.getELResolver();
while (i < propCount) {
if (i + 2 < propCount &&
this.children[i + 1] instanceof AstMethodParameters) {
// Method call not at end of expression
base = resolver.invoke(ctx, base,
this.children[i].getValue(ctx), null,
((AstMethodParameters)
this.children[i + 1]).getParameters(ctx));
i += 2;
} else if (i + 2 == propCount &&
this.children[i + 1] instanceof AstMethodParameters) {
// Method call at end of expression
ctx.setPropertyResolved(false);
property = this.children[i].getValue(ctx);
i += 2;
if (property == null) {
throw new PropertyNotFoundException(MessageFactory.get(
"error.unreachable.property", property));
}
} else if (i + 1 < propCount) {
// Object with property not at end of expression
property = this.children[i].getValue(ctx);
ctx.setPropertyResolved(false);
base = resolver.getValue(ctx, base, property);
i++;
} else {
// Object with property at end of expression
ctx.setPropertyResolved(false);
property = this.children[i].getValue(ctx);
i++;
if (property == null) {
throw new PropertyNotFoundException(MessageFactory.get(
"error.unreachable.property", property));
}
}
if (base == null) {
throw new PropertyNotFoundException(MessageFactory.get(
"error.unreachable.property", property));
}
}
Target t = new Target();
t.base = base;
t.property = property;
return t;
}
