cherry.foundation.testtool.stub.StubServiceImpl.java Source code

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Here is the source code for cherry.foundation.testtool.stub.StubServiceImpl.java

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/*
 * Copyright 2015 agwlvssainokuni
 *
 * 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.
 */

package cherry.foundation.testtool.stub;

import java.io.IOException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import org.apache.commons.lang3.StringUtils;

import cherry.foundation.testtool.reflect.ReflectionResolver;
import cherry.goods.util.ToMapUtil;

import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.base.Function;
import com.google.common.base.Predicate;

public class StubServiceImpl implements StubService {

    private ReflectionResolver reflectionResolver;

    private StubRepository repository;

    private ObjectMapper objectMapper;

    public void setReflectionResolver(ReflectionResolver reflectionResolver) {
        this.reflectionResolver = reflectionResolver;
    }

    public void setRepository(StubRepository repository) {
        this.repository = repository;
    }

    public void setObjectMapper(ObjectMapper objectMapper) {
        this.objectMapper = objectMapper;
    }

    @Override
    public List<String> resolveBeanName(String className) {
        try {
            return reflectionResolver.resolveBeanName(className);
        } catch (ClassNotFoundException ex) {
            return new ArrayList<>();
        }
    }

    @Override
    public List<Method> resolveMethod(String className, String methodName) {
        try {
            return reflectionResolver.resolveMethod(className, methodName);
        } catch (ClassNotFoundException ex) {
            return new ArrayList<>();
        }
    }

    @Override
    public List<Method> getStubbedMethod(String className) {
        try {
            if (StringUtils.isEmpty(className)) {
                return repository.getStubbedMethod();
            }
            Class<?> klass = objectMapper.getTypeFactory().constructFromCanonical(className).getRawClass();
            List<Method> list = new ArrayList<>();
            for (Method m : repository.getStubbedMethod()) {
                if (klass == m.getDeclaringClass()) {
                    list.add(m);
                }
            }
            return list;
        } catch (IllegalArgumentException ex) {
            return new ArrayList<>();
        }
    }

    @Override
    public boolean hasNext(String className, String methodName, int methodIndex) {
        return execute(className, methodName, methodIndex, new Predicate<Method>() {
            @Override
            public boolean apply(Method method) {
                return repository.get(method).hasNext();
            }
        });
    }

    @Override
    public String peek(String className, String methodName, int methodIndex) {
        return executeWithMapping(className, methodName, methodIndex, new Function<Method, Object>() {
            @Override
            public Object apply(Method method) {
                return repository.get(method).peek();
            }
        });
    }

    @Override
    public String peekType(String className, String methodName, int methodIndex) {
        return execute(className, methodName, methodIndex, new Function<Method, String>() {
            @Override
            public String apply(Method method) {
                return repository.get(method).peekType();
            }
        });
    }

    @Override
    public boolean isThrowable(String className, String methodName, int methodIndex) {
        return execute(className, methodName, methodIndex, new Predicate<Method>() {
            @Override
            public boolean apply(Method method) {
                return repository.get(method).isThrowable();
            }
        });
    }

    @Override
    public String peekThrowable(String className, String methodName, int methodIndex) {
        return execute(className, methodName, methodIndex, new Function<Method, String>() {
            @Override
            public String apply(Method method) {
                return repository.get(method).peekThrowable().getCanonicalName();
            }
        });
    }

    @Override
    public String clear(String className, String methodName, int methodIndex) {
        return executeWithMapping(className, methodName, methodIndex, new Function<Method, Boolean>() {
            @Override
            public Boolean apply(Method method) {
                repository.clear(method);
                return Boolean.TRUE;
            }
        });
    }

    @Override
    public String alwaysReturn(String className, String methodName, int methodIndex, final String value,
            final String valueType) {
        return executeWithMapping(className, methodName, methodIndex, new Function<Method, Object>() {
            @Override
            public Object apply(Method method) {
                JavaType returnType = objectMapper.getTypeFactory().constructType(method.getGenericReturnType());
                if (StringUtils.isNotEmpty(valueType)) {
                    returnType = objectMapper.getTypeFactory().constructFromCanonical(valueType);
                }
                try {
                    Object v = objectMapper.readValue(value, returnType);
                    repository.get(method).alwaysReturn(v, returnType.toCanonical());
                    return Boolean.TRUE;
                } catch (IOException ex) {
                    return ToMapUtil.fromThrowable(ex, Integer.MAX_VALUE);
                }
            }
        });
    }

    @Override
    public String thenReturn(String className, String methodName, int methodIndex, final String value,
            final String valueType) {
        return executeWithMapping(className, methodName, methodIndex, new Function<Method, Object>() {
            @Override
            public Object apply(Method method) {
                JavaType returnType = objectMapper.getTypeFactory().constructType(method.getGenericReturnType());
                if (StringUtils.isNotEmpty(valueType)) {
                    returnType = objectMapper.getTypeFactory().constructFromCanonical(valueType);
                }
                try {
                    Object v = objectMapper.readValue(value, returnType);
                    repository.get(method).thenReturn(v, returnType.toCanonical());
                    return Boolean.TRUE;
                } catch (IOException ex) {
                    return ToMapUtil.fromThrowable(ex, Integer.MAX_VALUE);
                }
            }
        });
    }

    @Override
    public String alwaysThrows(String className, String methodName, int methodIndex,
            final String throwableClassName) {
        return executeWithMapping(className, methodName, methodIndex, new Function<Method, Boolean>() {
            @Override
            public Boolean apply(Method method) {
                JavaType type = objectMapper.getTypeFactory().constructFromCanonical(throwableClassName);
                @SuppressWarnings("unchecked")
                Class<? extends Throwable> klass = (Class<? extends Throwable>) type.getRawClass();
                repository.get(method).alwaysThrows(klass);
                return Boolean.TRUE;
            }
        });
    }

    @Override
    public String thenThrows(String className, String methodName, int methodIndex,
            final String throwableClassName) {
        return executeWithMapping(className, methodName, methodIndex, new Function<Method, Boolean>() {
            @Override
            public Boolean apply(Method method) {
                JavaType type = objectMapper.getTypeFactory().constructFromCanonical(throwableClassName);
                @SuppressWarnings("unchecked")
                Class<? extends Throwable> klass = (Class<? extends Throwable>) type.getRawClass();
                repository.get(method).thenThrows(klass);
                return Boolean.TRUE;
            }
        });
    }

    private boolean execute(String className, String methodName, int methodIndex, Predicate<Method> predicate) {
        try {
            List<Method> list = reflectionResolver.resolveMethod(className, methodName);
            if (methodIndex >= list.size()) {
                return false;
            }
            return predicate.apply(list.get(methodIndex));
        } catch (ClassNotFoundException ex) {
            return false;
        }
    }

    private String execute(String className, String methodName, int methodIndex,
            Function<Method, String> function) {
        try {
            List<Method> list = reflectionResolver.resolveMethod(className, methodName);
            if (methodIndex >= list.size()) {
                return String.valueOf(false);
            }
            return function.apply(list.get(methodIndex));
        } catch (ClassNotFoundException ex) {
            return ex.getMessage();
        }
    }

    private <T> String executeWithMapping(String className, String methodName, int methodIndex,
            Function<Method, T> function) {
        try {
            List<Method> list = reflectionResolver.resolveMethod(className, methodName);
            if (methodIndex >= list.size()) {
                return objectMapper.writeValueAsString(Boolean.FALSE);
            }
            T result = function.apply(list.get(methodIndex));
            return objectMapper.writeValueAsString(result);
        } catch (ClassNotFoundException | IOException | IllegalArgumentException ex) {
            Map<String, ?> map = ToMapUtil.fromThrowable(ex, Integer.MAX_VALUE);
            try {
                return objectMapper.writeValueAsString(map);
            } catch (IOException ex2) {
                return ex.getMessage();
            }
        }
    }

}