NoOpClusterGuard.java

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//   http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.doris.cluster;

/**
 * No-op implementation of {@link ClusterGuard} used when no SPI provider is found.
 * All policy checks pass unconditionally — this is the default behavior
 * for the open-source edition.
 */
public class NoOpClusterGuard implements ClusterGuard {

    public static final NoOpClusterGuard INSTANCE = new NoOpClusterGuard();

    private NoOpClusterGuard() {
        // singleton
    }

    @Override
    public void onStartup(String dorisHomeDir) throws ClusterGuardException {
        // no-op
    }

    @Override
    public void checkTimeValidity() throws ClusterGuardException {
        // no-op: always valid
    }

    @Override
    public void checkNodeLimit(int currentNodeCount) throws ClusterGuardException {
        // no-op: unlimited
    }

    @Override
    public String getGuardInfo() {
        return "{}";
    }
}