// Path: hydra-composer/src/main/java/com/flipkart/hydra/composer/Composer.java
// public interface Composer {
// 
//     public Object compose(Map<String, Object> values) throws ComposerEvaluationException;
// 
//     public List<String> getDependencies();
// }
// 
// Path: hydra-composer/src/main/java/com/flipkart/hydra/composer/DefaultComposer.java
// public class DefaultComposer implements Composer {
// 
//     private final Object context;
//     private final List<String> dependencies;
// 
//     public DefaultComposer(Object context) throws ComposerInstantiationException {
//         this(context, false);
//     }
// 
//     public DefaultComposer(Object context, boolean isAlreadyParsed) throws ComposerInstantiationException {
//         this.context = isAlreadyParsed ? context : parse(context);
//         this.dependencies = findDependencies(this.context);
//     }
// 
//     @Override
//     public Object compose(Map<String, Object> values) throws ComposerEvaluationException {
//         return evaluate(context, values);
//     }
// 
//     @Override
//     public List<String> getDependencies() {
//         return dependencies;
//     }
// 
//     private List<String> findDependencies(Object context) {
//         List<String> dependencies = new ArrayList<>();
//         if (context instanceof Expression) {
//             dependencies.addAll(((Expression) context).getDependencies());
//         } else if (context instanceof Map) {
//             Map mapContext = (Map) context;
//             for (Object value : mapContext.values()) {
//                 dependencies.addAll(findDependencies(value));
//             }
//         } else if (context instanceof List) {
//             List listContext = (List) context;
//             for (Object value : listContext) {
//                 dependencies.addAll(findDependencies(value));
//             }
//         }
// 
//         return dependencies;
//     }
// }
// 
// Path: hydra-composer/src/main/java/com/flipkart/hydra/composer/exception/ComposerEvaluationException.java
// public class ComposerEvaluationException extends Exception {
// 
//     public ComposerEvaluationException() {
//         super();
//     }
// 
//     public ComposerEvaluationException(String message) {
//         super(message);
//     }
// 
//     public ComposerEvaluationException(String message, Throwable cause) {
//         super(message, cause);
//     }
// 
//     public ComposerEvaluationException(Throwable cause) {
//         super(cause);
//     }
// }
// 
// Path: hydra-composer/src/main/java/com/flipkart/hydra/composer/exception/ComposerInstantiationException.java
// public class ComposerInstantiationException extends Exception {
// 
//     public ComposerInstantiationException() {
//         super();
//     }
// 
//     public ComposerInstantiationException(String message) {
//         super(message);
//     }
// 
//     public ComposerInstantiationException(String message, Throwable cause) {
//         super(message, cause);
//     }
// 
//     public ComposerInstantiationException(Throwable cause) {
//         super(cause);
//     }
// }
// 
// Path: hydra-dispatcher/src/main/java/com/flipkart/hydra/dispatcher/exception/DispatchFailedException.java
// public class DispatchFailedException extends Exception {
// 
//     public DispatchFailedException() {
//         super();
//     }
// 
//     public DispatchFailedException(String message) {
//         super(message);
//     }
// 
//     public DispatchFailedException(String message, Throwable cause) {
//         super(message, cause);
//     }
// 
//     public DispatchFailedException(Throwable cause) {
//         super(cause);
//     }
// }
// 
// Path: hydra-task/src/main/java/com/flipkart/hydra/task/Task.java
// public interface Task {
// 
//     public Callable<Object> getCallable(Map<String, Object> values) throws BadCallableException;
// 
//     public List<String> getDependencies();
// }
// 
// Path: hydra-task/src/main/java/com/flipkart/hydra/task/exception/BadCallableException.java
// public class BadCallableException extends Exception {
// 
//     public BadCallableException() {
//         super();
//     }
// 
//     public BadCallableException(String message) {
//         super(message);
//     }
// 
//     public BadCallableException(String message, Throwable cause) {
//         super(message, cause);
//     }
// 
//     public BadCallableException(Throwable cause) {
//         super(cause);
//     }
// }


import com.flipkart.hydra.composer.Composer;
import com.flipkart.hydra.composer.DefaultComposer;
import com.flipkart.hydra.composer.exception.ComposerEvaluationException;
import com.flipkart.hydra.composer.exception.ComposerInstantiationException;
import com.flipkart.hydra.dispatcher.exception.DispatchFailedException;
import com.flipkart.hydra.task.Task;
import com.flipkart.hydra.task.exception.BadCallableException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.*;

            try {
                Future future = completionService.take();
                String key = futures.get(future);
                responses.put(key, future.get());
                dispatched.remove(key);
                remaining--;
            } catch (InterruptedException | ExecutionException e) {
                throw new DispatchFailedException("Unable to fetch all required data", e);
            }
        }

        return responses;
    }

    private Map<String, Object> collectDependencies(Map<String, Object> responses, List<String> dependencies) {
        Map<String, Object> collectedDependencies = new HashMap<>();
        for (String dependency : dependencies) {
            if (responses.containsKey(dependency)) {
                collectedDependencies.put(dependency, responses.get(dependency));
            }
        }

        return collectedDependencies;
    }

    private Future<Object> dispatchTask(Task task, Map<String, Object> responses) throws DispatchFailedException {
        try {
            Callable<Object> callable = task.getCallable(responses);
            return completionService.submit(callable);
// Path: hydra-composer/src/main/java/com/flipkart/hydra/composer/Composer.java
// public interface Composer {
// 
//     public Object compose(Map<String, Object> values) throws ComposerEvaluationException;
// 
//     public List<String> getDependencies();
// }
// 
// Path: hydra-composer/src/main/java/com/flipkart/hydra/composer/DefaultComposer.java
// public class DefaultComposer implements Composer {
// 
//     private final Object context;
//     private final List<String> dependencies;
// 
//     public DefaultComposer(Object context) throws ComposerInstantiationException {
//         this(context, false);
//     }
// 
//     public DefaultComposer(Object context, boolean isAlreadyParsed) throws ComposerInstantiationException {
//         this.context = isAlreadyParsed ? context : parse(context);
//         this.dependencies = findDependencies(this.context);
//     }
// 
//     @Override
//     public Object compose(Map<String, Object> values) throws ComposerEvaluationException {
//         return evaluate(context, values);
//     }
// 
//     @Override
//     public List<String> getDependencies() {
//         return dependencies;
//     }
// 
//     private List<String> findDependencies(Object context) {
//         List<String> dependencies = new ArrayList<>();
//         if (context instanceof Expression) {
//             dependencies.addAll(((Expression) context).getDependencies());
//         } else if (context instanceof Map) {
//             Map mapContext = (Map) context;
//             for (Object value : mapContext.values()) {
//                 dependencies.addAll(findDependencies(value));
//             }
//         } else if (context instanceof List) {
//             List listContext = (List) context;
//             for (Object value : listContext) {
//                 dependencies.addAll(findDependencies(value));
//             }
//         }
// 
//         return dependencies;
//     }
// }
// 
// Path: hydra-composer/src/main/java/com/flipkart/hydra/composer/exception/ComposerEvaluationException.java
// public class ComposerEvaluationException extends Exception {
// 
//     public ComposerEvaluationException() {
//         super();
//     }
// 
//     public ComposerEvaluationException(String message) {
//         super(message);
//     }
// 
//     public ComposerEvaluationException(String message, Throwable cause) {
//         super(message, cause);
//     }
// 
//     public ComposerEvaluationException(Throwable cause) {
//         super(cause);
//     }
// }
// 
// Path: hydra-composer/src/main/java/com/flipkart/hydra/composer/exception/ComposerInstantiationException.java
// public class ComposerInstantiationException extends Exception {
// 
//     public ComposerInstantiationException() {
//         super();
//     }
// 
//     public ComposerInstantiationException(String message) {
//         super(message);
//     }
// 
//     public ComposerInstantiationException(String message, Throwable cause) {
//         super(message, cause);
//     }
// 
//     public ComposerInstantiationException(Throwable cause) {
//         super(cause);
//     }
// }
// 
// Path: hydra-dispatcher/src/main/java/com/flipkart/hydra/dispatcher/exception/DispatchFailedException.java
// public class DispatchFailedException extends Exception {
// 
//     public DispatchFailedException() {
//         super();
//     }
// 
//     public DispatchFailedException(String message) {
//         super(message);
//     }
// 
//     public DispatchFailedException(String message, Throwable cause) {
//         super(message, cause);
//     }
// 
//     public DispatchFailedException(Throwable cause) {
//         super(cause);
//     }
// }
// 
// Path: hydra-task/src/main/java/com/flipkart/hydra/task/Task.java
// public interface Task {
// 
//     public Callable<Object> getCallable(Map<String, Object> values) throws BadCallableException;
// 
//     public List<String> getDependencies();
// }
// 
// Path: hydra-task/src/main/java/com/flipkart/hydra/task/exception/BadCallableException.java
// public class BadCallableException extends Exception {
// 
//     public BadCallableException() {
//         super();
//     }
// 
//     public BadCallableException(String message) {
//         super(message);
//     }
// 
//     public BadCallableException(String message, Throwable cause) {
//         super(message, cause);
//     }
// 
//     public BadCallableException(Throwable cause) {
//         super(cause);
//     }
// }


// Path: hydra-dispatcher/src/main/java/com/flipkart/hydra/dispatcher/DefaultDispatcher.java
import com.flipkart.hydra.composer.Composer;
import com.flipkart.hydra.composer.DefaultComposer;
import com.flipkart.hydra.composer.exception.ComposerEvaluationException;
import com.flipkart.hydra.composer.exception.ComposerInstantiationException;
import com.flipkart.hydra.dispatcher.exception.DispatchFailedException;
import com.flipkart.hydra.task.Task;
import com.flipkart.hydra.task.exception.BadCallableException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.*;


            try {
                Future future = completionService.take();
                String key = futures.get(future);
                responses.put(key, future.get());
                dispatched.remove(key);
                remaining--;
            } catch (InterruptedException | ExecutionException e) {
                throw new DispatchFailedException("Unable to fetch all required data", e);
            }
        }

        return responses;
    }

    private Map<String, Object> collectDependencies(Map<String, Object> responses, List<String> dependencies) {
        Map<String, Object> collectedDependencies = new HashMap<>();
        for (String dependency : dependencies) {
            if (responses.containsKey(dependency)) {
                collectedDependencies.put(dependency, responses.get(dependency));
            }
        }

        return collectedDependencies;
    }

    private Future<Object> dispatchTask(Task task, Map<String, Object> responses) throws DispatchFailedException {
        try {
            Callable<Object> callable = task.getCallable(responses);
            return completionService.submit(callable);
        } catch (BadCallableException e) {