lttng: Add clear() call before add elements to list

[deliverable/tracecompass.git] / org.eclipse.linuxtools.lttng2.core / src / org / eclipse / linuxtools / internal / lttng2 / core / control / model / impl / SessionInfo.java

/**********************************************************************
 * Copyright (c) 2012, 2013 Ericsson
 *
 * All rights reserved. This program and the accompanying materials are
 * made available under the terms of the Eclipse Public License v1.0 which
 * accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *   Bernd Hufmann - Initial API and implementation
 *   Bernd Hufmann - Updated for support of LTTng Tools 2.1
 **********************************************************************/
package org.eclipse.linuxtools.internal.lttng2.core.control.model.impl;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import org.eclipse.linuxtools.internal.lttng2.core.control.model.IDomainInfo;
import org.eclipse.linuxtools.internal.lttng2.core.control.model.ISessionInfo;
import org.eclipse.linuxtools.internal.lttng2.core.control.model.TraceSessionState;

/**
 * <p>
 * Implementation of the trace session interface (ISessionInfo) to store session
 * related data.
 * </p>
 *
 * @author Bernd Hufmann
 */
public class SessionInfo extends TraceInfo implements ISessionInfo {

    // ------------------------------------------------------------------------
    // Attributes
    // ------------------------------------------------------------------------
    /**
     * The trace session state.
     */
    private TraceSessionState fState = TraceSessionState.INACTIVE;
    /**
     * The trace session path for storing traces.
     */
    private String fSessionPath = ""; //$NON-NLS-1$
    /**
     * The domains information of this session.
     */
    private final List<IDomainInfo> fDomains = new ArrayList<IDomainInfo>();
    /**
     * Flag to indicate whether trace is streamed over network or not.
     */
    private boolean fIsStreamedTrace = false;

    // ------------------------------------------------------------------------
    // Constructors
    // ------------------------------------------------------------------------
    /**
     * Constructor
     * @param name - name of base event
     */
    public SessionInfo(String name) {
        super(name);
    }

    /**
     * Copy constructor
     * @param other - the instance to copy
     */
    public SessionInfo(SessionInfo other) {
        super(other);
        fState = other.fState;
        fSessionPath = other.fSessionPath;
        fIsStreamedTrace = other.fIsStreamedTrace;

        for (Iterator<IDomainInfo> iterator = other.fDomains.iterator(); iterator.hasNext();) {
            IDomainInfo domain = iterator.next();
            if (domain instanceof DomainInfo) {
                fDomains.add(new DomainInfo((DomainInfo)domain));
            } else {
                fDomains.add(domain);
            }
        }
    }

    // ------------------------------------------------------------------------
    // Accessors
    // ------------------------------------------------------------------------
    /*
     * (non-Javadoc)
     * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.ISessionInfo#getSessionState()
     */
    @Override
    public TraceSessionState getSessionState() {
        return fState;
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.ISessionInfo#setSessionState(org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.TraceSessionState)
     */
    @Override
    public void setSessionState(TraceSessionState state) {
        fState = state;
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.ISessionInfo#setSessionState(java.lang.String)
     */
    @Override
    public void setSessionState(String stateName) {
        if (TraceSessionState.INACTIVE.getInName().equals(stateName)) {
            fState = TraceSessionState.INACTIVE;
        } else if (TraceSessionState.ACTIVE.getInName().equals(stateName)) {
            fState = TraceSessionState.ACTIVE;
        }
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.ISessionInfo#getSessionPath()
     */
    @Override
    public String getSessionPath() {
        return fSessionPath;
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.ISessionInfo#setSessionPath(java.lang.String)
     */
    @Override
    public void setSessionPath(String path) {
        fSessionPath = path;
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.ISessionInfo#getDomains()
     */
    @Override
    public IDomainInfo[] getDomains() {
        return fDomains.toArray(new IDomainInfo[fDomains.size()]);
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.ISessionInfo#setDomains(java.util.List)
     */
    @Override
    public void setDomains(List<IDomainInfo> domains) {
        fDomains.clear();
        for (Iterator<IDomainInfo> iterator = domains.iterator(); iterator.hasNext();) {
            IDomainInfo domainInfo = iterator.next();
            fDomains.add(domainInfo);
        }
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.linuxtools.internal.lttng2.core.control.model.ISessionInfo#isStreamedTrace()
     */
    @Override
    public boolean isStreamedTrace() {
        return fIsStreamedTrace;
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.linuxtools.internal.lttng2.core.control.model.ISessionInfo#setIsStreamedTrace(boolean)
     */

    @Override
    public void setStreamedTrace(boolean isStreamedTrace) {
        fIsStreamedTrace = isStreamedTrace;
    }

    // ------------------------------------------------------------------------
    // Operations
    // ------------------------------------------------------------------------
    /*
     * (non-Javadoc)
     * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.ISessionInfo#addDomain(org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.IDomainInfo)
     */
    @Override
    public void addDomain(IDomainInfo domainInfo) {
        fDomains.add(domainInfo);
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.linuxtools.internal.lttng2.core.control.model.impl.TraceInfo#hashCode()
     */
    @Override
    public int hashCode() {
        final int prime = 31;
        int result = super.hashCode();
        result = prime * result + fDomains.hashCode();
        result = prime * result + (fIsStreamedTrace ? 1231 : 1237);
        result = prime * result + ((fSessionPath == null) ? 0 : fSessionPath.hashCode());
        result = prime * result + ((fState == null) ? 0 : fState.hashCode());
        return result;
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.linuxtools.internal.lttng2.core.control.model.impl.TraceInfo#equals(java.lang.Object)
     */
    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (!super.equals(obj)) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        SessionInfo other = (SessionInfo) obj;
        if (!fDomains.equals(other.fDomains)) {
            return false;
        }
        if (fIsStreamedTrace != other.fIsStreamedTrace) {
            return false;
        }
        if (fSessionPath == null) {
            if (other.fSessionPath != null) {
                return false;
            }
        } else if (!fSessionPath.equals(other.fSessionPath)) {
            return false;
        }
        if (fState != other.fState) {
            return false;
        }
        return true;
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.impl.TraceInfo#toString()
     */
    @SuppressWarnings("nls")
    @Override
    public String toString() {
        StringBuffer output = new StringBuffer();
            output.append("[SessionInfo(");
            output.append(super.toString());
            output.append(",State=");
            output.append(fState);
            output.append(",isStreamedTrace=");
            output.append(fIsStreamedTrace);
            output.append(",Domains=");
            for (Iterator<IDomainInfo> iterator = fDomains.iterator(); iterator.hasNext();) {
                IDomainInfo domain = iterator.next();
                output.append(domain.toString());
            }
            output.append(")]");
            return output.toString();
    }
}