// Path: src/main/java/org/tools4j/hoverraft/command/CommandLog.java
// public interface CommandLog {
//     long size();
//     default long lastIndex() {
//         return size() - 1;
//     }
//     int readTerm(long index);
//     void readTo(long index, LogKey target);
//     void readTo(long index, CommandKey target);
//     void readTo(long index, LogEntry target);
// 
//     void append(int term, Command command);
//     void truncateIncluding(long index);
// 
//     default int lastTerm() {
//         return readTerm(lastIndex());
//     }
// 
//     default void lastKeyTo(final LogKey target) {
//         readTo(lastIndex(), target);
//     }
// 
//     default int lastKeyCompareTo(final LogKey logKey) {
//         final int termCompare = Integer.compare(lastTerm(), logKey.term());
//         return termCompare == 0 ? Long.compare(lastIndex(), logKey.index()) : termCompare;
//     }
// 
//     boolean contains(CommandKey commandKey);
//     default LogContainment contains(final LogKey logKey) {
//         return LogContainment.containmentFor(logKey, this);
//     }
// 
// }
// 
// Path: src/main/java/org/tools4j/hoverraft/command/LogEntry.java
// public interface LogEntry extends DirectPayload {
//     LogKey logKey();
// 
//     default LogEntry term(final int term) {
//         logKey().term(term);
//         return this;
//     }
//     default LogEntry index(final long index) {
//         logKey().index(index);
//         return this;
//     }
// 
//     Command command();
// 
//     default void copyFrom(final LogEntry logEntry) {
//         writeBufferOrNull().putBytes(offset(), logEntry.readBufferOrNull(), logEntry.offset(), logEntry.byteLength());
//     }
// }
// 
// Path: src/main/java/org/tools4j/hoverraft/command/machine/StateMachine.java
// public interface StateMachine {
//     void onMessage(Command message);
// }
// 
// Path: src/main/java/org/tools4j/hoverraft/message/AppendRequest.java
// public interface AppendRequest extends Message {
// 
//     int term();
// 
//     AppendRequest term(int term);
// 
//     int leaderId();
// 
//     AppendRequest leaderId(int leaderId);
// 
//     LogKey prevLogKey();
// 
//     long leaderCommit();
// 
//     AppendRequest leaderCommit(long leaderCommit);
// 
//     Sequence<LogEntry> logEntries();
// 
//     default AppendRequest appendLogEntry(final LogEntry logEntry) {
//         logEntries().append(logEntry);
//         return this;
//     }
// 
//     @Override
//     default Transition accept(final ServerContext serverContext, final EventHandler eventHandler) {
//         return eventHandler.onAppendRequest(serverContext, this);
//     }
// }
// 
// Path: src/main/java/org/tools4j/hoverraft/message/VoteRequest.java
// public interface VoteRequest extends Message {
// 
//     int term();
// 
//     VoteRequest term(int term);
// 
//     int candidateId();
// 
//     VoteRequest candidateId(int candidateId);
// 
//     LogKey lastLogKey();
// 
//     @Override
//     default Transition accept(final ServerContext serverContext, final EventHandler eventHandler) {
//         return eventHandler.onVoteRequest(serverContext, this);
//     }
// }
// 
// Path: src/main/java/org/tools4j/hoverraft/server/ServerContext.java
// public interface ServerContext {
// 
//     ServerConfig serverConfig();
// 
//     ConsensusConfig consensusConfig();
// 
//     Connections<Message> connections();
// 
//     DirectFactory directFactory();
// 
//     StateMachine stateMachine();
// 
//     Timer timer();
// 
//     ResendStrategy resendStrategy();
// 
//     void perform();
// 
//     default int id() {
//         return serverConfig().id();
//     }
// }


import java.util.Objects;
import org.tools4j.hoverraft.command.CommandLog;
import org.tools4j.hoverraft.command.LogEntry;
import org.tools4j.hoverraft.command.machine.StateMachine;
import org.tools4j.hoverraft.event.*;
import org.tools4j.hoverraft.message.AppendRequest;
import org.tools4j.hoverraft.message.VoteRequest;
import org.tools4j.hoverraft.server.ServerContext;
/**
 * The MIT License (MIT)
 *
 * Copyright (c) 2016-2017 hover-raft (tools4j), Marco Terzer
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package org.tools4j.hoverraft.state;



abstract public class AbstractState implements State {

    private final Role role;
    private final PersistentState persistentState;
    private final VolatileState volatileState;
    private final HigherTermHandler higherTermHandler;
    private final VoteRequestHandler voteRequestHandler;
    private final AppendRequestHandler appendRequestHandler;

    public AbstractState(final Role role, final PersistentState persistentState, final VolatileState volatileState) {
        this.role = Objects.requireNonNull(role);
        this.persistentState = Objects.requireNonNull(persistentState);
        this.volatileState = Objects.requireNonNull(volatileState);
        this.higherTermHandler = new HigherTermHandler(persistentState);
// Path: src/main/java/org/tools4j/hoverraft/command/CommandLog.java
// public interface CommandLog {
//     long size();
//     default long lastIndex() {
//         return size() - 1;
//     }
//     int readTerm(long index);
//     void readTo(long index, LogKey target);
//     void readTo(long index, CommandKey target);
//     void readTo(long index, LogEntry target);
// 
//     void append(int term, Command command);
//     void truncateIncluding(long index);
// 
//     default int lastTerm() {
//         return readTerm(lastIndex());
//     }
// 
//     default void lastKeyTo(final LogKey target) {
//         readTo(lastIndex(), target);
//     }
// 
//     default int lastKeyCompareTo(final LogKey logKey) {
//         final int termCompare = Integer.compare(lastTerm(), logKey.term());
//         return termCompare == 0 ? Long.compare(lastIndex(), logKey.index()) : termCompare;
//     }
// 
//     boolean contains(CommandKey commandKey);
//     default LogContainment contains(final LogKey logKey) {
//         return LogContainment.containmentFor(logKey, this);
//     }
// 
// }
// 
// Path: src/main/java/org/tools4j/hoverraft/command/LogEntry.java
// public interface LogEntry extends DirectPayload {
//     LogKey logKey();
// 
//     default LogEntry term(final int term) {
//         logKey().term(term);
//         return this;
//     }
//     default LogEntry index(final long index) {
//         logKey().index(index);
//         return this;
//     }
// 
//     Command command();
// 
//     default void copyFrom(final LogEntry logEntry) {
//         writeBufferOrNull().putBytes(offset(), logEntry.readBufferOrNull(), logEntry.offset(), logEntry.byteLength());
//     }
// }
// 
// Path: src/main/java/org/tools4j/hoverraft/command/machine/StateMachine.java
// public interface StateMachine {
//     void onMessage(Command message);
// }
// 
// Path: src/main/java/org/tools4j/hoverraft/message/AppendRequest.java
// public interface AppendRequest extends Message {
// 
//     int term();
// 
//     AppendRequest term(int term);
// 
//     int leaderId();
// 
//     AppendRequest leaderId(int leaderId);
// 
//     LogKey prevLogKey();
// 
//     long leaderCommit();
// 
//     AppendRequest leaderCommit(long leaderCommit);
// 
//     Sequence<LogEntry> logEntries();
// 
//     default AppendRequest appendLogEntry(final LogEntry logEntry) {
//         logEntries().append(logEntry);
//         return this;
//     }
// 
//     @Override
//     default Transition accept(final ServerContext serverContext, final EventHandler eventHandler) {
//         return eventHandler.onAppendRequest(serverContext, this);
//     }
// }
// 
// Path: src/main/java/org/tools4j/hoverraft/message/VoteRequest.java
// public interface VoteRequest extends Message {
// 
//     int term();
// 
//     VoteRequest term(int term);
// 
//     int candidateId();
// 
//     VoteRequest candidateId(int candidateId);
// 
//     LogKey lastLogKey();
// 
//     @Override
//     default Transition accept(final ServerContext serverContext, final EventHandler eventHandler) {
//         return eventHandler.onVoteRequest(serverContext, this);
//     }
// }
// 
// Path: src/main/java/org/tools4j/hoverraft/server/ServerContext.java
// public interface ServerContext {
// 
//     ServerConfig serverConfig();
// 
//     ConsensusConfig consensusConfig();
// 
//     Connections<Message> connections();
// 
//     DirectFactory directFactory();
// 
//     StateMachine stateMachine();
// 
//     Timer timer();
// 
//     ResendStrategy resendStrategy();
// 
//     void perform();
// 
//     default int id() {
//         return serverConfig().id();
//     }
// }


// Path: src/main/java/org/tools4j/hoverraft/state/AbstractState.java
import java.util.Objects;
import org.tools4j.hoverraft.command.CommandLog;
import org.tools4j.hoverraft.command.LogEntry;
import org.tools4j.hoverraft.command.machine.StateMachine;
import org.tools4j.hoverraft.event.*;
import org.tools4j.hoverraft.message.AppendRequest;
import org.tools4j.hoverraft.message.VoteRequest;
import org.tools4j.hoverraft.server.ServerContext;

/**
 * The MIT License (MIT)
 *
 * Copyright (c) 2016-2017 hover-raft (tools4j), Marco Terzer
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package org.tools4j.hoverraft.state;



abstract public class AbstractState implements State {

    private final Role role;
    private final PersistentState persistentState;
    private final VolatileState volatileState;
    private final HigherTermHandler higherTermHandler;
    private final VoteRequestHandler voteRequestHandler;
    private final AppendRequestHandler appendRequestHandler;

    public AbstractState(final Role role, final PersistentState persistentState, final VolatileState volatileState) {
        this.role = Objects.requireNonNull(role);
        this.persistentState = Objects.requireNonNull(persistentState);
        this.volatileState = Objects.requireNonNull(volatileState);
        this.higherTermHandler = new HigherTermHandler(persistentState);
        this.voteRequestHandler = new VoteRequestHandler(persistentState);