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58 changes: 58 additions & 0 deletions
58
datatypes/src/main/java/org/hyperledger/besu/datatypes/RollupGasData.java
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/* | ||
* Copyright optimism-java. | ||
* | ||
* 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. | ||
* | ||
* SPDX-License-Identifier: Apache-2.0 | ||
*/ | ||
package org.hyperledger.besu.datatypes; | ||
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import org.apache.tuweni.bytes.Bytes; | ||
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/** Optimism roll up data records. */ | ||
public class RollupGasData { | ||
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private static final RollupGasData empty = new RollupGasData(0L, 0L); | ||
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private final long zeroes; | ||
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private final long ones; | ||
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RollupGasData(final long zeroes, final long ones) { | ||
this.zeroes = zeroes; | ||
this.ones = ones; | ||
} | ||
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public long getZeroes() { | ||
return zeroes; | ||
} | ||
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public long getOnes() { | ||
return ones; | ||
} | ||
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public static RollupGasData fromPayload(final Bytes payload) { | ||
if (payload == null) { | ||
return empty; | ||
} | ||
final int length = payload.size(); | ||
int zeroes = 0; | ||
int ones = 0; | ||
for (int i = 0; i < length; i++) { | ||
byte b = payload.get(i); | ||
if (b == 0) { | ||
zeroes++; | ||
} else { | ||
ones++; | ||
} | ||
} | ||
return new RollupGasData(zeroes, ones); | ||
} | ||
} |
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