/*
 * 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.struts2;

import org.apache.struts2.util.CompoundRoot;
import org.apache.struts2.util.ValueStack;

import java.util.HashMap;
import java.util.Map;

/**
 * Stub value stack for testing
 */
public class StubValueStack implements ValueStack {
    Map<String, Object> ctx = new HashMap<>();
    CompoundRoot root = new CompoundRoot();

    public Map<String, Object> getContext() {
        return ctx;
    }

    @Override
    public ActionContext getActionContext() {
        return ActionContext.of(ctx).bind();
    }

    public void setDefaultType(Class defaultType) {
    }

    public void setExprOverrides(Map<Object, Object> overrides) {
    }

    public Map<Object, Object> getExprOverrides() {
        return null;
    }

    public CompoundRoot getRoot() {
        return root;
    }

    public void setValue(String expr, Object value) {
        ctx.put(expr, value);
    }

    public void setParameter(String expr, Object value) {
        throw new UnsupportedOperationException("not implemented");
    }

    public void setValue(String expr, Object value, boolean throwExceptionOnFailure) {
        ctx.put(expr, value);
    }

    public String findString(String expr) {
        return (String) ctx.get(expr);
    }

    public String findString(String expr, boolean throwExceptionOnFailure) {
        return findString(expr, false);
    }

    public Object findValue(String expr) {
        return findValue(expr, false);
    }

    public Object findValue(String expr, boolean throwExceptionOnFailure) {
        return ctx.get(expr);
    }

    public Object findValue(String expr, Class asType) {
        return findValue(expr, asType, false);
    }

    public Object findValue(String expr, Class asType, boolean throwExceptionOnFailure) {
        return ctx.get(expr);
    }

    public Object peek() {
        return root.peek();
    }

    public Object pop() {
        return root.pop();
    }

    public void push(Object o) {
        root.push(o);
    }

    public void set(String key, Object o) {
        ctx.put(key, o);
    }

    public int size() {
        return root.size();
    }
}
